Materiały źródłowe

• #1 Valley Fever: Pathogenesis and Evolving Treatment Options

  https://pmc.ncbi.nlm.nih.gov/articles/PMC10774831/

  Coccidioidomycosis, also termed Valley fever, is a fungal infection caused by the inhalation of Coccidioides endospores. […] In a clinical setting, along with the evaluation of symptoms, a medical provider may also test the patient’s blood using antibody tests or perform microscopy to directly detect the presence of Coccidioides in a patient tissue sample for confirmation of a diagnosis. […] The diagnosis of coccidioidomycosis typically involves a combination of clinical evaluation, laboratory tests, and imaging studies. […] Laboratory tests play a crucial role in the diagnosis of coccidioidomycosis. […] These antibody tests, such as enzyme immunoassays (EIAs), complement fixation, or immunodiffusion tests, can help confirm the diagnosis. […] Imaging studies, such as chest X-rays, magnetic resonance imaging (MRIs), or computed tomography (CT) scans, are useful in evaluating the extent of lung involvement and identifying complications, like lung nodules, cavities, or pleural effusions, as well as homing in on areas of the body specifically affected by the disease.

• #2 Coccidioidomycosis: Laboratory diagnosis and screening – UpToDate

  https://www.uptodate.com/contents/coccidioidomycosis-laboratory-diagnosis-and-screening

  Coccidioidomycosis has protean manifestations and is frequently unrecognized, especially in travelers to endemic areas who return to locations where the disease is not typically encountered. […] Specific tests must be performed to make a diagnosis of coccidioidomycosis since the clinical manifestations cannot be distinguished from a variety of other infections on clinical grounds alone. Conventional approaches to diagnosing coccidioidomycosis involve detection of specific anticoccidioidal antibodies and/or identification or recovery of Coccidioides spp from clinical specimens. This topic will review the laboratory diagnosis of coccidioidomycosis.

• #3 Valley Fever: Pathogenesis and Evolving Treatment Options

  https://pmc.ncbi.nlm.nih.gov/articles/PMC10774831/

  Coccidioidomycosis, also termed Valley fever, is a fungal infection caused by the inhalation of Coccidioides endospores. […] In a clinical setting, along with the evaluation of symptoms, a medical provider may also test the patient’s blood using antibody tests or perform microscopy to directly detect the presence of Coccidioides in a patient tissue sample for confirmation of a diagnosis. […] The diagnosis of coccidioidomycosis typically involves a combination of clinical evaluation, laboratory tests, and imaging studies. […] Laboratory tests play a crucial role in the diagnosis of coccidioidomycosis. […] These antibody tests, such as enzyme immunoassays (EIAs), complement fixation, or immunodiffusion tests, can help confirm the diagnosis. […] Imaging studies, such as chest X-rays, magnetic resonance imaging (MRIs), or computed tomography (CT) scans, are useful in evaluating the extent of lung involvement and identifying complications, like lung nodules, cavities, or pleural effusions, as well as homing in on areas of the body specifically affected by the disease.

• #4 Coccidioidomycosis (Valley Fever) in Primary Care | AAFP

  https://www.aafp.org/pubs/afp/issues/2020/0215/p221.html

  Primary pulmonary coccidioidomycosis (valley fever) is caused by inhaling airborne spores of the fungus Coccidioides immitis or Coccidioides posadasii. […] Diagnosis usually relies on enzyme immunoassay with immunodiffusion confirmation, but these tests may not be positive for one to three weeks after disease onset. […] The diagnosis of coccidioidomycosis should be considered in all patients presenting with community-acquired pneumonia if they live in or have traveled to an endemic area in the previous two months; the diagnosis can essentially be ruled out if the patient has no such travel history. […] Laboratory testing is required for a definitive diagnosis of coccidioidomycosis. […] The detection of Coccidioides in any clinical specimen by culture or microscopy is the diagnostic standard, but these results are not instantly available, and obtaining samples can be problematic.

• #5 Order the Right Tests | Valley Fever Center For Excellence

  https://vfce.arizona.edu/valley-fever-people/order-right-tests

  Valley Fever diagnosis can be confirmed by: microscopic identification of the fungal spherules in an infected tissue, sputum or body fluid sample […] growing a culture of coccidioides spp. from a tissue specimen, sputum or body fluid […] detection of antibodies (serological tests specifically for Valley Fever) against the fungus in blood serum or other body fluids. A diagnosis of coccidioidomycosis is suspected only if a patient is known to have had exposure to the disease through travel or residence in an endemic area. If the serologic test for Valley Fever antibodies is positive, the laboratory then performs a titer. A titer is a measurement of the amount or concentration of antibodies a patient is making against the fungus […] While positive serological results almost always mean that a patient has Valley Fever, a third or more of patients with Valley Fever may actually have negative results. Therefore, it may be necessary to repeat the serologic test periodically. Valley Fever skin tests (coccidioidin or spherulin) indicate prior exposure to the fungus, but, because reactivity is lifelong, skin tests are not particularly helpful in diagnosing a current infection. Routine chest x-rays will commonly detect Valley Fever cavities in a person with no symptoms and who may be unaware of having had Valley Fever.

• #6 Explanation of Coccidioides Diagnostic Testing | UC Davis Center for Valley Fever

  https://health.ucdavis.edu/valley-fever/about-valley-fever/coccidioides-diagnostic-testing/index.html

  Diagnosis of Valley Fever can involve culture or nucleic-acid-based detection from respiratory specimens, spherule detection in tissue samples by histopathology (HP), or by detection of specific antibodies in a patients serum or body fluid. […] Unfortunately, Coccidioides, the fungus that causes Valley Fever, is not often detectable in respiratory specimens and diagnosis is thus often made by serology avoiding more invasive means of obtaining a diagnosis. […] The common misconception that complement fixation is a confirmatory test for Valley Fever is false. […] The UC Davis Coccidioidomycosis Serology lab performs coccidioidal immunodiffusion and complement fixation, which comprise a sensitive and specific repertoire for Valley Fever diagnosis and disease monitoring. […] When performed in an experienced lab, this test is highly sensitive for the detection of Coccidioides-specific antibodies and thus the diagnosis of Valley Fever.

• #7 Testing Algorithm for Coccidioidomycosis | Valley Fever | CDC

  https://www.cdc.gov/valley-fever/hcp/testing-algorithm/index.html

  Coccidioidomycosis (Valley fever) is an invasive fungal disease that often presents as community-acquired pneumonia in primary and urgent care settings. […] Coccidioidomycosis cannot be reliably distinguished from other causes of respiratory illness by signs or symptoms alone. […] Testing for coccidioidomycosis may be considered on the initial patient encounter or at a secondary visit, depending on situational factors. […] Consider testing on an initial presentation of community-acquired pneumonia (CAP) or erythema nodosum following recent respiratory symptoms who: […] Consider serologic testing by enzyme immunoassay (EIA) with immunodiffusion (ID) and complement fixation (CF). […] If the EIA is positive, clinicians may consider follow-up testing with ID and CF to rule out false positives and confirm the diagnosis.

• #8 Coccidioidomycosis (Valley Fever) in Primary Care | AAFP

  https://www.aafp.org/pubs/afp/issues/2020/0215/p221.html

  Therefore, the diagnosis is usually made serologically, although serologic results can be falsely negative while the immune response develops or in patients who are immunocompromised. […] Enzyme immunoassay is the most commonly used initial serologic test, and it is usually positive one to three weeks after disease onset. […] Immunodiffusion is also typically performed to confirm the diagnosis and allay concerns about false-positive results. […] Negative results may warrant retesting if suspicion for coccidioidomycosis remains. […] An algorithm for the diagnostic approach to patients with suspected coccidioidomycosis is shown in Figure 3.

• #9 Coccidioidomycosis (Valley Fever) in Primary Care | AAFP

  https://www.aafp.org/pubs/afp/issues/2020/0215/p221.html

  Therefore, the diagnosis is usually made serologically, although serologic results can be falsely negative while the immune response develops or in patients who are immunocompromised. […] Enzyme immunoassay is the most commonly used initial serologic test, and it is usually positive one to three weeks after disease onset. […] Immunodiffusion is also typically performed to confirm the diagnosis and allay concerns about false-positive results. […] Negative results may warrant retesting if suspicion for coccidioidomycosis remains. […] An algorithm for the diagnostic approach to patients with suspected coccidioidomycosis is shown in Figure 3.

• #10 Coccidioidomycosis and Valley Fever Workup: Approach Considerations, Serologic Studies, Cultures

  https://emedicine.medscape.com/article/215978-workup

  Observation of Coccidioides in a clinical specimen establishes the diagnosis. […] Coccidioides urinary antigenemia has been found positive in more than 70% of immunocompromised patients with HIV/AIDS or solid organ transplant; no reports on its sensitivity in less compromised or immunocompetent patients are available. […] Chest radiography is indicated, with further imaging studies as appropriate. Lumbar puncture is mandatory in patients with suspected meningitis. […] For more than half a century, detection of antibodies to coccidioidal antigens has been used to establish the diagnosis of coccidioidomycosis and to monitor patients undergoing therapy. […] Serologic tests for coccidioidomycosis measure titers of immunoglobulin M (IgM) or immunoglobulin G (IgG). […] The appearance of immunoglobulin M (IgM) or precipitin antibody against Coccidioides is the most sensitive serologic indication of early infection.

• #11 FAQs | Valley Fever Center For Excellence

  https://vfce.arizona.edu/valley-fever-people/faqs

  Diagnosis is obtained by use of a specific blood test (called a coccidioidal or cocci serology) which measures the level or titer of antibodies to the fungus. A positive titer is usually measured or reported in dilutions of the patient’s serum that continue to react to the fungal antigen. Titers are reported as 1:2, 1:4, etc. In early disease, the cocci serology must be repeated in 2-4 weeks if negative because the antibody level is too low to be detected. Culture of sputum, tissue, biopsies, or body fluids or histopathologic (microscopic) evidence from the same sources are diagnostic. The doctor also uses the x-ray as a means of following the progress of the disease. […] Yes. Depending upon the symptoms, it may be confused with cancer, tuberculosis, chronic obstructive pulmonary disease, chronic fatigue syndrome and others. However, if the specific blood test to measure antibodies against the fungus is performed along with chest x-rays, travel history through the Southwest, and when appropriate skin test results are performed and considered, a diagnosis is made. The isolation in laboratory culture of the causative fungus from sputum, tissue or body fluids is diagnostic as is the presence of the diagnostic spherules as seen in histopathology.

• #12 Explanation of Coccidioides Diagnostic Testing | UC Davis Center for Valley Fever

  https://health.ucdavis.edu/valley-fever/about-valley-fever/coccidioides-diagnostic-testing/index.html

  Diagnosis of Valley Fever can involve culture or nucleic-acid-based detection from respiratory specimens, spherule detection in tissue samples by histopathology (HP), or by detection of specific antibodies in a patients serum or body fluid. […] Unfortunately, Coccidioides, the fungus that causes Valley Fever, is not often detectable in respiratory specimens and diagnosis is thus often made by serology avoiding more invasive means of obtaining a diagnosis. […] The common misconception that complement fixation is a confirmatory test for Valley Fever is false. […] The UC Davis Coccidioidomycosis Serology lab performs coccidioidal immunodiffusion and complement fixation, which comprise a sensitive and specific repertoire for Valley Fever diagnosis and disease monitoring. […] When performed in an experienced lab, this test is highly sensitive for the detection of Coccidioides-specific antibodies and thus the diagnosis of Valley Fever.

• #13 FAQs | Valley Fever Center For Excellence

  https://vfce.arizona.edu/valley-fever-people/faqs

  Diagnosis is obtained by use of a specific blood test (called a coccidioidal or cocci serology) which measures the level or titer of antibodies to the fungus. A positive titer is usually measured or reported in dilutions of the patient’s serum that continue to react to the fungal antigen. Titers are reported as 1:2, 1:4, etc. In early disease, the cocci serology must be repeated in 2-4 weeks if negative because the antibody level is too low to be detected. Culture of sputum, tissue, biopsies, or body fluids or histopathologic (microscopic) evidence from the same sources are diagnostic. The doctor also uses the x-ray as a means of following the progress of the disease. […] Yes. Depending upon the symptoms, it may be confused with cancer, tuberculosis, chronic obstructive pulmonary disease, chronic fatigue syndrome and others. However, if the specific blood test to measure antibodies against the fungus is performed along with chest x-rays, travel history through the Southwest, and when appropriate skin test results are performed and considered, a diagnosis is made. The isolation in laboratory culture of the causative fungus from sputum, tissue or body fluids is diagnostic as is the presence of the diagnostic spherules as seen in histopathology.

• #14 Order the Right Tests | Valley Fever Center For Excellence

  https://vfce.arizona.edu/valley-fever-people/order-right-tests

  Valley Fever diagnosis can be confirmed by: microscopic identification of the fungal spherules in an infected tissue, sputum or body fluid sample […] growing a culture of coccidioides spp. from a tissue specimen, sputum or body fluid […] detection of antibodies (serological tests specifically for Valley Fever) against the fungus in blood serum or other body fluids. A diagnosis of coccidioidomycosis is suspected only if a patient is known to have had exposure to the disease through travel or residence in an endemic area. If the serologic test for Valley Fever antibodies is positive, the laboratory then performs a titer. A titer is a measurement of the amount or concentration of antibodies a patient is making against the fungus […] While positive serological results almost always mean that a patient has Valley Fever, a third or more of patients with Valley Fever may actually have negative results. Therefore, it may be necessary to repeat the serologic test periodically. Valley Fever skin tests (coccidioidin or spherulin) indicate prior exposure to the fungus, but, because reactivity is lifelong, skin tests are not particularly helpful in diagnosing a current infection. Routine chest x-rays will commonly detect Valley Fever cavities in a person with no symptoms and who may be unaware of having had Valley Fever.

• #15 Order the Right Tests | Valley Fever Center For Excellence

  https://vfce.arizona.edu/valley-fever-people/order-right-tests

  Valley Fever diagnosis can be confirmed by: microscopic identification of the fungal spherules in an infected tissue, sputum or body fluid sample […] growing a culture of coccidioides spp. from a tissue specimen, sputum or body fluid […] detection of antibodies (serological tests specifically for Valley Fever) against the fungus in blood serum or other body fluids. A diagnosis of coccidioidomycosis is suspected only if a patient is known to have had exposure to the disease through travel or residence in an endemic area. If the serologic test for Valley Fever antibodies is positive, the laboratory then performs a titer. A titer is a measurement of the amount or concentration of antibodies a patient is making against the fungus […] While positive serological results almost always mean that a patient has Valley Fever, a third or more of patients with Valley Fever may actually have negative results. Therefore, it may be necessary to repeat the serologic test periodically. Valley Fever skin tests (coccidioidin or spherulin) indicate prior exposure to the fungus, but, because reactivity is lifelong, skin tests are not particularly helpful in diagnosing a current infection. Routine chest x-rays will commonly detect Valley Fever cavities in a person with no symptoms and who may be unaware of having had Valley Fever.

• #16 Coccidioidomycosis and Valley Fever Workup: Approach Considerations, Serologic Studies, Cultures

  https://emedicine.medscape.com/article/215978-workup

  Peripheral solitary pulmonary nodules secondary to coccidiomycosis are especially amenable to diagnosis by percutaneous transthoracic needle biopsy. […] The diagnosis of coccidioidomycosis can be made by observing spherules (70 m in diameter) that contain endospores in specimens of any body fluid, including sputum or lesion smears and biopsy material.

• #17 Coccidioidomycosis Symptoms and Diagnosis | American Lung Association

  https://www.lung.org/lung-health-diseases/lung-disease-lookup/coccidioidomycosis/symptoms-diagnosis

  Valley fever can be difficult to diagnose because the symptoms are similar to other lung diseases. […] If Valley fever is suspected, a blood test can help determine your immune systems response to the fungus. […] Other tests that may help diagnose coccidioidomycosis are: Sputum samples, produced by coughing or obtained by bronchoscopy, to look for the fungus in a lab culture. […] If you have a history of Valley fever, there is a skin test available that your doctor may order to determine if your body has an immune response to the fungus that causes coccidioidomycosis. […] Healthcare providers outside the regions where the Coccidioides fungus is found may be less familiar with the disease, so diagnosis of coccidioidomycosis is often delayed and may require multiple doctors visits.

• #18 Coccidioidomycosis and Valley Fever Workup: Approach Considerations, Serologic Studies, Cultures

  https://emedicine.medscape.com/article/215978-workup

  Immunodiffusion and complement fixation (CF) methods can detect coccidioidal immunoglobulin G (IgG). […] The most definitive method for diagnosis is isolation of the organism from clinical specimens. […] PCR assays are used to detect a target gene after DNA extraction from biopsy specimens. […] Skin testing for diagnosis of coccidioidomycosis involves the intradermal injection of a coccidioidal antigen preparation (eg, coccidioidin, spherulin). […] Obtain chest radiography in all patients with suspected or confirmed coccidioidomycosis, to check for signs of pulmonary infection. […] Perform lumbar puncture in patients with fever, headache, nuchal rigidity, meningismus, mental status changes, or ataxia. […] Bronchoscopy is a useful diagnostic procedure in suspected coccidioidal infection if results from other studies (eg, sputum, serologies) are not diagnostic.

• #19 Valley fever Information | Mount Sinai – New York

  https://www.mountsinai.org/health-library/diseases-conditions/valley-fever

  Valley fever is an infection that occurs when the spores of the fungus Coccidioides immitis or Coccidioides posadasii enter your body through the lungs. […] Your health care provider will perform a physical exam and ask about symptoms and travel history. Tests done for milder forms of this infection include: Blood test to check for antibodies to Coccidioides (the fungus that causes Valley fever), Chest x-ray, Sputum culture, Sputum smear (KOH test). […] Tests done for more severe or widespread forms of the infection include: Biopsy of the lymph node, lung, or liver, Bone marrow biopsy, Bronchoscopy with lavage, Spinal tap (lumbar puncture) to check for meningitis.

• #20 Coccidioidomycosis and Valley Fever Workup: Approach Considerations, Serologic Studies, Cultures

  https://emedicine.medscape.com/article/215978-workup

  Immunodiffusion and complement fixation (CF) methods can detect coccidioidal immunoglobulin G (IgG). […] The most definitive method for diagnosis is isolation of the organism from clinical specimens. […] PCR assays are used to detect a target gene after DNA extraction from biopsy specimens. […] Skin testing for diagnosis of coccidioidomycosis involves the intradermal injection of a coccidioidal antigen preparation (eg, coccidioidin, spherulin). […] Obtain chest radiography in all patients with suspected or confirmed coccidioidomycosis, to check for signs of pulmonary infection. […] Perform lumbar puncture in patients with fever, headache, nuchal rigidity, meningismus, mental status changes, or ataxia. […] Bronchoscopy is a useful diagnostic procedure in suspected coccidioidal infection if results from other studies (eg, sputum, serologies) are not diagnostic.

• #21 Coccidioidomycosis (Valley fever) – Dermatology Advisor

  https://www.dermatologyadvisor.com/home/decision-support-in-medicine/dermatology/coccidioidomycosis-valley-fever/

  Serologic tests for Coccidioides are often the key to the diagnosis. Because interstitial granulomatous dermatitis occurs early in the course of the illness, initial serologic tests may be negative. Repeat serologies in two or three weeks are recommended if the initial results are negative. […] In a patient who is confirmed to have coccidioidomycosis, disseminated lesions must be distinguished from the reactive manifestations of coccidioidomycosis, especially Sweets syndrome and reactive interstitial granulomatous dermatitis. The key to the diagnosis of dissemination is identification of the organisms within the skin. […] Skin biopsies reveal the diagnostic spherules of coccidioidomycosis. The organisms are usually readily visualized with standard hematoxylin-eosin stains, but special stains for fungi, such as periodic acid-Schiff (PAS) and methenamine silver stains may also assist in identification of spherules.

• #22 FAQs | Valley Fever Center For Excellence

  https://vfce.arizona.edu/valley-fever-people/faqs

  Diagnosis is obtained by use of a specific blood test (called a coccidioidal or cocci serology) which measures the level or titer of antibodies to the fungus. A positive titer is usually measured or reported in dilutions of the patient’s serum that continue to react to the fungal antigen. Titers are reported as 1:2, 1:4, etc. In early disease, the cocci serology must be repeated in 2-4 weeks if negative because the antibody level is too low to be detected. Culture of sputum, tissue, biopsies, or body fluids or histopathologic (microscopic) evidence from the same sources are diagnostic. The doctor also uses the x-ray as a means of following the progress of the disease. […] Yes. Depending upon the symptoms, it may be confused with cancer, tuberculosis, chronic obstructive pulmonary disease, chronic fatigue syndrome and others. However, if the specific blood test to measure antibodies against the fungus is performed along with chest x-rays, travel history through the Southwest, and when appropriate skin test results are performed and considered, a diagnosis is made. The isolation in laboratory culture of the causative fungus from sputum, tissue or body fluids is diagnostic as is the presence of the diagnostic spherules as seen in histopathology.

• #23 Coccidioidomycosis and Valley Fever: Background, Pathophysiology, Etiology

  https://emedicine.medscape.com/article/215978-overview

  Coccidioidomycosis spreads beyond the lungs in approximately 0.6% of the infections in the general population. […] Diagnosis requires isolation of the organism in culture, identification on histologic specimens, or serologic testing (see Workup). […] Diagnosis often is delayed in nonendemic areas because coccidioidal infection initially is not considered in the differential. […] Amphotericin B and oral triazoles are the mainstays of antifungal therapy for coccidioidomycosis. […] Coccidioidomycosis is caused by C immitis and C posadasii, 2 genetically distinct but morphologically identical species of a soil fungus endemic to certain arid-to-semiarid regions of the Western Hemisphere. […] Diagnosis of coccidioidomycosis with use of the Coccidioides antigen enzyme immunoassay. […] The Utility of Coccidioides Polymerase Chain Reaction Testing in the Clinical Setting. […] Rapid diagnosis of coccidioidomycosis by nested PCR assay of sputum. […] PCR assays for identification of Coccidioides posadasii based on the nucleotide sequence of the antigen 2/proline-rich antigen. […] Detection of Coccidioides species in clinical specimens by real-time PCR.

• #24 Coccidioidomycosis – Infectious Diseases – Merck Manual Professional Edition

  https://www.merckmanuals.com/professional/infectious-diseases/fungi/coccidioidomycosis

  A urine antigen test may be useful for diagnosing coccidioidomycosis in patients who are immunocompromised with severe forms of the disease, including pneumonia and disseminated infection. […] Using a polymerase chain reaction (PCR) technique to test lower respiratory tract samples for DNA can provide a more rapid diagnosis. However, this test is not widely available.

• #25 Soil to Lungs: The Expanding Threat of Valley Fever

  https://www.contagionlive.com/view/soil-to-lungs-climate-change-and-the-expanding-threat-of-valley-fever

  Antigen Detection: This test detects fungal antigens in bodily fluids. It can be useful in delayed antibody production or immunocompromised patients who may not mount a robust antibody response. […] Molecular Tests: Polymerase Chain Reaction (PCR) tests can detect fungal DNA in a sample, offering a rapid and specific diagnosis. […] Imaging Tests: Chest X-rays or CT scans can provide supportive evidence of cocci. These tests can reveal characteristic changes in the lungs or other organs. […] Addressing the challenges of valley fever requires diagnosis, treatment, preventive strategies, and vaccine development.

• #26 Coccidioidomycosis and Valley Fever Workup: Approach Considerations, Serologic Studies, Cultures

  https://emedicine.medscape.com/article/215978-workup

  Observation of Coccidioides in a clinical specimen establishes the diagnosis. […] Coccidioides urinary antigenemia has been found positive in more than 70% of immunocompromised patients with HIV/AIDS or solid organ transplant; no reports on its sensitivity in less compromised or immunocompetent patients are available. […] Chest radiography is indicated, with further imaging studies as appropriate. Lumbar puncture is mandatory in patients with suspected meningitis. […] For more than half a century, detection of antibodies to coccidioidal antigens has been used to establish the diagnosis of coccidioidomycosis and to monitor patients undergoing therapy. […] Serologic tests for coccidioidomycosis measure titers of immunoglobulin M (IgM) or immunoglobulin G (IgG). […] The appearance of immunoglobulin M (IgM) or precipitin antibody against Coccidioides is the most sensitive serologic indication of early infection.

• #27 Valley Fever in Dogs: Causes, Symptoms and Diagnosis of Valley Fever in Dogs MiDOG Animal Diagnostics

  https://www.midogtest.com/blog/valley-fever-in-dogs-current-status-presentation-and-diagnostic-advances/

  Culture: Isolation of Coccidioides spp. from clinical specimens (e.g., respiratory secretions, tissue biopsies). Culture is definitive but slow and poses a biohazard risk to laboratory personnel. […] Polymerase Chain Reaction (PCR): Detection of fungal DNA in clinical samples. PCR offers rapid results and high specificity but may not always be available in all veterinary laboratories. […] Next-generation sequencing (NGS) has emerged as a powerful diagnostic tool with higher sensitivity and specificity for detecting Valley Fever compared to traditional methods. […] Next-generation sequencing testing, as offered in the All-in-One Test by MiDOG Animal Diagnostics, represents a significant advancement in the diagnosis of Valley Fever, offering higher sensitivity and specificity compared to traditional methods. By incorporating NGS into diagnostic protocols, veterinarians can improve the accuracy of diagnoses and enhance the overall quality of care for their patients.

• #28 Valley Fever: Pathogenesis and Evolving Treatment Options

  https://pmc.ncbi.nlm.nih.gov/articles/PMC10774831/

  Coccidioidomycosis, also termed Valley fever, is a fungal infection caused by the inhalation of Coccidioides endospores. […] In a clinical setting, along with the evaluation of symptoms, a medical provider may also test the patient’s blood using antibody tests or perform microscopy to directly detect the presence of Coccidioides in a patient tissue sample for confirmation of a diagnosis. […] The diagnosis of coccidioidomycosis typically involves a combination of clinical evaluation, laboratory tests, and imaging studies. […] Laboratory tests play a crucial role in the diagnosis of coccidioidomycosis. […] These antibody tests, such as enzyme immunoassays (EIAs), complement fixation, or immunodiffusion tests, can help confirm the diagnosis. […] Imaging studies, such as chest X-rays, magnetic resonance imaging (MRIs), or computed tomography (CT) scans, are useful in evaluating the extent of lung involvement and identifying complications, like lung nodules, cavities, or pleural effusions, as well as homing in on areas of the body specifically affected by the disease.

• #29 Coccidioidomycosis – Wikipedia

  https://en.wikipedia.org/wiki/Coccidioidomycosis

  An indirect demonstration of fungal infection can also be achieved by serologic analysis detecting fungal antigen or host IgM or IgG antibody produced against the fungus. The available tests include the tube-precipitin (TP) assays, complement fixation assays, and enzyme immunoassays. TP antibody is not found in cerebrospinal fluid (CSF). TP antibody is specific and is used as a confirmatory test, whereas ELISA is sensitive and thus used for initial testing. […] If the meninges are affected, CSF will show abnormally low glucose levels, an increased level of protein, and lymphocytic pleocytosis. Rarely, CSF eosinophilia is present. […] Chest X-rays rarely demonstrate nodules or cavities in the lungs, but these images commonly demonstrate lung opacification, pleural effusions, or enlargement of lymph nodes associated with the lungs. Computed tomography scans of the chest are more sensitive than chest X-rays to detect these changes.

• #30 FAQs | Valley Fever Center For Excellence

  https://vfce.arizona.edu/valley-fever-people/faqs

  Diagnosis is obtained by use of a specific blood test (called a coccidioidal or cocci serology) which measures the level or titer of antibodies to the fungus. A positive titer is usually measured or reported in dilutions of the patient’s serum that continue to react to the fungal antigen. Titers are reported as 1:2, 1:4, etc. In early disease, the cocci serology must be repeated in 2-4 weeks if negative because the antibody level is too low to be detected. Culture of sputum, tissue, biopsies, or body fluids or histopathologic (microscopic) evidence from the same sources are diagnostic. The doctor also uses the x-ray as a means of following the progress of the disease. […] Yes. Depending upon the symptoms, it may be confused with cancer, tuberculosis, chronic obstructive pulmonary disease, chronic fatigue syndrome and others. However, if the specific blood test to measure antibodies against the fungus is performed along with chest x-rays, travel history through the Southwest, and when appropriate skin test results are performed and considered, a diagnosis is made. The isolation in laboratory culture of the causative fungus from sputum, tissue or body fluids is diagnostic as is the presence of the diagnostic spherules as seen in histopathology.

• #31 Valley Fever: Pathogenesis and Evolving Treatment Options

  https://pmc.ncbi.nlm.nih.gov/articles/PMC10774831/

  Coccidioidomycosis, also termed Valley fever, is a fungal infection caused by the inhalation of Coccidioides endospores. […] In a clinical setting, along with the evaluation of symptoms, a medical provider may also test the patient’s blood using antibody tests or perform microscopy to directly detect the presence of Coccidioides in a patient tissue sample for confirmation of a diagnosis. […] The diagnosis of coccidioidomycosis typically involves a combination of clinical evaluation, laboratory tests, and imaging studies. […] Laboratory tests play a crucial role in the diagnosis of coccidioidomycosis. […] These antibody tests, such as enzyme immunoassays (EIAs), complement fixation, or immunodiffusion tests, can help confirm the diagnosis. […] Imaging studies, such as chest X-rays, magnetic resonance imaging (MRIs), or computed tomography (CT) scans, are useful in evaluating the extent of lung involvement and identifying complications, like lung nodules, cavities, or pleural effusions, as well as homing in on areas of the body specifically affected by the disease.

• #32 Coccidioidomycosis – Wikipedia

  https://en.wikipedia.org/wiki/Coccidioidomycosis

  An indirect demonstration of fungal infection can also be achieved by serologic analysis detecting fungal antigen or host IgM or IgG antibody produced against the fungus. The available tests include the tube-precipitin (TP) assays, complement fixation assays, and enzyme immunoassays. TP antibody is not found in cerebrospinal fluid (CSF). TP antibody is specific and is used as a confirmatory test, whereas ELISA is sensitive and thus used for initial testing. […] If the meninges are affected, CSF will show abnormally low glucose levels, an increased level of protein, and lymphocytic pleocytosis. Rarely, CSF eosinophilia is present. […] Chest X-rays rarely demonstrate nodules or cavities in the lungs, but these images commonly demonstrate lung opacification, pleural effusions, or enlargement of lymph nodes associated with the lungs. Computed tomography scans of the chest are more sensitive than chest X-rays to detect these changes.

• #33 Valley Fever: Pathogenesis and Evolving Treatment Options

  https://pmc.ncbi.nlm.nih.gov/articles/PMC10774831/

  Coccidioidomycosis, also termed Valley fever, is a fungal infection caused by the inhalation of Coccidioides endospores. […] In a clinical setting, along with the evaluation of symptoms, a medical provider may also test the patient’s blood using antibody tests or perform microscopy to directly detect the presence of Coccidioides in a patient tissue sample for confirmation of a diagnosis. […] The diagnosis of coccidioidomycosis typically involves a combination of clinical evaluation, laboratory tests, and imaging studies. […] Laboratory tests play a crucial role in the diagnosis of coccidioidomycosis. […] These antibody tests, such as enzyme immunoassays (EIAs), complement fixation, or immunodiffusion tests, can help confirm the diagnosis. […] Imaging studies, such as chest X-rays, magnetic resonance imaging (MRIs), or computed tomography (CT) scans, are useful in evaluating the extent of lung involvement and identifying complications, like lung nodules, cavities, or pleural effusions, as well as homing in on areas of the body specifically affected by the disease.

• #34 Valley Fever Causes, Symptoms, Diagnosis, Treatment

  https://www.medicinenet.com/valley_fever/article.htm

  Diagnosis of valley fever […] Early in the disease, the diagnosis is difficult because the symptoms may be mild that doctors don’t initiate any tests. […] Accurate diagnosis of coccidioidomycosis is important because there are many diseases that have similar initial symptoms and may occur in areas of the world where coccidioidomycosis occurs; for example, Andes virus (caused by a hantavirus), arbovirus encephalitis (caused by six different viruses), Argentine hemorrhagic fever (an arenavirus infection caused by Junin virus), cryptococcosis (caused by Cryptococcus neoformans, a fungal species), and others. […] Fortunately, a confirmative diagnostic test is easily done by microscopic examination of sputum or a tissue biopsy. The biopsy shows characteristic fungal spherules and endospores of Coccidioides immitis or Coccidioides posadasii. These fungi can also be identified after they are cultured on fungal media (growth takes about five days). Additionally, there are several serum tests and a PCR test (to detect the genetic material of the fungus) that are available. High blood levels of IgG (an immunoglobulin) that react with the fungi can help determine the extent of the disease. Skin tests can determine if the person has been exposed to the fungi, but the test is not very specific or sensitive. […] Other tests help determine the extent of the disease. The most frequent test is a chest X-ray to identify abnormalities in the lungs. Physicians may order MRI and CT scans to examine a patient’s brain or other organs (especially bone) to see if they’re involved. Bone scans also help to determine the presence of bone involvement. Most physicians will do other routine blood tests such as a CBC (complete blood count) and ESR (erythrocyte sedimentation rate, a marker of inflammation) test. […] Occasionally, the diagnosis may require obtaining samples of tissue or tissue fluid, so lumbar puncture, bronchoscopy, and surgical or needle biopsy may be done.

• #35 Valley Fever Causes, Symptoms, Diagnosis, Treatment

  https://www.medicinenet.com/valley_fever/article.htm

  Diagnosis of valley fever […] Early in the disease, the diagnosis is difficult because the symptoms may be mild that doctors don’t initiate any tests. […] Accurate diagnosis of coccidioidomycosis is important because there are many diseases that have similar initial symptoms and may occur in areas of the world where coccidioidomycosis occurs; for example, Andes virus (caused by a hantavirus), arbovirus encephalitis (caused by six different viruses), Argentine hemorrhagic fever (an arenavirus infection caused by Junin virus), cryptococcosis (caused by Cryptococcus neoformans, a fungal species), and others. […] Fortunately, a confirmative diagnostic test is easily done by microscopic examination of sputum or a tissue biopsy. The biopsy shows characteristic fungal spherules and endospores of Coccidioides immitis or Coccidioides posadasii. These fungi can also be identified after they are cultured on fungal media (growth takes about five days). Additionally, there are several serum tests and a PCR test (to detect the genetic material of the fungus) that are available. High blood levels of IgG (an immunoglobulin) that react with the fungi can help determine the extent of the disease. Skin tests can determine if the person has been exposed to the fungi, but the test is not very specific or sensitive. […] Other tests help determine the extent of the disease. The most frequent test is a chest X-ray to identify abnormalities in the lungs. Physicians may order MRI and CT scans to examine a patient’s brain or other organs (especially bone) to see if they’re involved. Bone scans also help to determine the presence of bone involvement. Most physicians will do other routine blood tests such as a CBC (complete blood count) and ESR (erythrocyte sedimentation rate, a marker of inflammation) test. […] Occasionally, the diagnosis may require obtaining samples of tissue or tissue fluid, so lumbar puncture, bronchoscopy, and surgical or needle biopsy may be done.

• #36 Coccidioidomycosis and Valley Fever Workup: Approach Considerations, Serologic Studies, Cultures

  https://emedicine.medscape.com/article/215978-workup

  Immunodiffusion and complement fixation (CF) methods can detect coccidioidal immunoglobulin G (IgG). […] The most definitive method for diagnosis is isolation of the organism from clinical specimens. […] PCR assays are used to detect a target gene after DNA extraction from biopsy specimens. […] Skin testing for diagnosis of coccidioidomycosis involves the intradermal injection of a coccidioidal antigen preparation (eg, coccidioidin, spherulin). […] Obtain chest radiography in all patients with suspected or confirmed coccidioidomycosis, to check for signs of pulmonary infection. […] Perform lumbar puncture in patients with fever, headache, nuchal rigidity, meningismus, mental status changes, or ataxia. […] Bronchoscopy is a useful diagnostic procedure in suspected coccidioidal infection if results from other studies (eg, sputum, serologies) are not diagnostic.

• #37 Coccidioidomycosis and Valley Fever Workup: Approach Considerations, Serologic Studies, Cultures

  https://emedicine.medscape.com/article/215978-workup

  Immunodiffusion and complement fixation (CF) methods can detect coccidioidal immunoglobulin G (IgG). […] The most definitive method for diagnosis is isolation of the organism from clinical specimens. […] PCR assays are used to detect a target gene after DNA extraction from biopsy specimens. […] Skin testing for diagnosis of coccidioidomycosis involves the intradermal injection of a coccidioidal antigen preparation (eg, coccidioidin, spherulin). […] Obtain chest radiography in all patients with suspected or confirmed coccidioidomycosis, to check for signs of pulmonary infection. […] Perform lumbar puncture in patients with fever, headache, nuchal rigidity, meningismus, mental status changes, or ataxia. […] Bronchoscopy is a useful diagnostic procedure in suspected coccidioidal infection if results from other studies (eg, sputum, serologies) are not diagnostic.

• #38 Order the Right Tests | Valley Fever Center For Excellence

  https://vfce.arizona.edu/valley-fever-people/order-right-tests

  Valley Fever diagnosis can be confirmed by: microscopic identification of the fungal spherules in an infected tissue, sputum or body fluid sample […] growing a culture of coccidioides spp. from a tissue specimen, sputum or body fluid […] detection of antibodies (serological tests specifically for Valley Fever) against the fungus in blood serum or other body fluids. A diagnosis of coccidioidomycosis is suspected only if a patient is known to have had exposure to the disease through travel or residence in an endemic area. If the serologic test for Valley Fever antibodies is positive, the laboratory then performs a titer. A titer is a measurement of the amount or concentration of antibodies a patient is making against the fungus […] While positive serological results almost always mean that a patient has Valley Fever, a third or more of patients with Valley Fever may actually have negative results. Therefore, it may be necessary to repeat the serologic test periodically. Valley Fever skin tests (coccidioidin or spherulin) indicate prior exposure to the fungus, but, because reactivity is lifelong, skin tests are not particularly helpful in diagnosing a current infection. Routine chest x-rays will commonly detect Valley Fever cavities in a person with no symptoms and who may be unaware of having had Valley Fever.

• #39 Coccidioidomycosis and Valley Fever Workup: Approach Considerations, Serologic Studies, Cultures

  https://emedicine.medscape.com/article/215978-workup

  Immunodiffusion and complement fixation (CF) methods can detect coccidioidal immunoglobulin G (IgG). […] The most definitive method for diagnosis is isolation of the organism from clinical specimens. […] PCR assays are used to detect a target gene after DNA extraction from biopsy specimens. […] Skin testing for diagnosis of coccidioidomycosis involves the intradermal injection of a coccidioidal antigen preparation (eg, coccidioidin, spherulin). […] Obtain chest radiography in all patients with suspected or confirmed coccidioidomycosis, to check for signs of pulmonary infection. […] Perform lumbar puncture in patients with fever, headache, nuchal rigidity, meningismus, mental status changes, or ataxia. […] Bronchoscopy is a useful diagnostic procedure in suspected coccidioidal infection if results from other studies (eg, sputum, serologies) are not diagnostic.

• #40 Coccidioidomycosis and Valley Fever Workup: Approach Considerations, Serologic Studies, Cultures

  https://emedicine.medscape.com/article/215978-workup

  Peripheral solitary pulmonary nodules secondary to coccidiomycosis are especially amenable to diagnosis by percutaneous transthoracic needle biopsy. […] The diagnosis of coccidioidomycosis can be made by observing spherules (70 m in diameter) that contain endospores in specimens of any body fluid, including sputum or lesion smears and biopsy material.

• #41 Coccidioidomycosis and Valley Fever Workup: Approach Considerations, Serologic Studies, Cultures

  https://emedicine.medscape.com/article/215978-workup

  Immunodiffusion and complement fixation (CF) methods can detect coccidioidal immunoglobulin G (IgG). […] The most definitive method for diagnosis is isolation of the organism from clinical specimens. […] PCR assays are used to detect a target gene after DNA extraction from biopsy specimens. […] Skin testing for diagnosis of coccidioidomycosis involves the intradermal injection of a coccidioidal antigen preparation (eg, coccidioidin, spherulin). […] Obtain chest radiography in all patients with suspected or confirmed coccidioidomycosis, to check for signs of pulmonary infection. […] Perform lumbar puncture in patients with fever, headache, nuchal rigidity, meningismus, mental status changes, or ataxia. […] Bronchoscopy is a useful diagnostic procedure in suspected coccidioidal infection if results from other studies (eg, sputum, serologies) are not diagnostic.

• #42 Coccidioidomycosis and Valley Fever Workup: Approach Considerations, Serologic Studies, Cultures

  https://emedicine.medscape.com/article/215978-workup

  Because most patients recover spontaneously, pursuing documentation of coccidioidal infection is not imperative unless the patient is immunocompromised or has signs of severe progressive disease or dissemination. Diagnosis requires isolation of the organism in culture, identification on histologic specimens, or serologic testing. […] The diagnostic evaluation is guided by the patient’s clinical presentation and the clinicians index of suspicion. General laboratory tests include a complete blood count (CBC) and erythrocyte sedimentation rate (ESR). Typical results are a normal white blood cell count or mild lymphocytosis, monocytosis, and/or eosinophilia (5%) and an elevated ESR. […] The specific laboratory tests include the following: Immunoglobulin testing, Culture, Polymerase chain reaction (PCR) testing, Skin testing.

• #43 Coccidioidomycosis (Valley Fever) in Primary Care | AAFP

  https://www.aafp.org/pubs/afp/issues/2020/0215/p221.html

  Therefore, the diagnosis is usually made serologically, although serologic results can be falsely negative while the immune response develops or in patients who are immunocompromised. […] Enzyme immunoassay is the most commonly used initial serologic test, and it is usually positive one to three weeks after disease onset. […] Immunodiffusion is also typically performed to confirm the diagnosis and allay concerns about false-positive results. […] Negative results may warrant retesting if suspicion for coccidioidomycosis remains. […] An algorithm for the diagnostic approach to patients with suspected coccidioidomycosis is shown in Figure 3.

• #44 Testing Algorithm for Coccidioidomycosis | Valley Fever | CDC

  https://www.cdc.gov/valley-fever/hcp/testing-algorithm/index.html

  Coccidioidomycosis (Valley fever) is an invasive fungal disease that often presents as community-acquired pneumonia in primary and urgent care settings. […] Coccidioidomycosis cannot be reliably distinguished from other causes of respiratory illness by signs or symptoms alone. […] Testing for coccidioidomycosis may be considered on the initial patient encounter or at a secondary visit, depending on situational factors. […] Consider testing on an initial presentation of community-acquired pneumonia (CAP) or erythema nodosum following recent respiratory symptoms who: […] Consider serologic testing by enzyme immunoassay (EIA) with immunodiffusion (ID) and complement fixation (CF). […] If the EIA is positive, clinicians may consider follow-up testing with ID and CF to rule out false positives and confirm the diagnosis.

• #45 Valley Fever: Pathogenesis and Evolving Treatment Options

  https://pmc.ncbi.nlm.nih.gov/articles/PMC10774831/

  The diagnosis of coccidioidomycosis may require a multidisciplinary approach, involving infectious disease specialists, pulmonologists, and laboratory professionals with experience in fungal diagnostics. […] False-negative and false-positive results may occur in the laboratory tests for coccidioidomycosis, highlighting the need for careful interpretation of the results in conjunction with the patient’s clinical presentation. […] Therefore, the diagnosis of coccidioidomycosis involves a combination of clinical evaluation, laboratory tests to detect antibodies or the fungus itself, and imaging studies.

• #46 Education & Awareness – Valley Fever Institute

  https://valleyfeverinstitute.com/education-and-awareness/

  The Valley Fever Institute strives to provide education on Valley Fever symptoms and the importance of seeking diagnosis and treatment to members of our community. […] It is estimated that approximately 75 percent of symptomatic cases of Valley Fever are undiagnosed or misdiagnosed. Even after a patient seeks medical attention, it can often take numerous visits and an average of five months to receive a diagnosis. […] Healthcare providers rely on your medical and travel history, symptoms, physical examinations, and laboratory tests to diagnose Valley Fever. The most common way that healthcare providers test for Valley Fever is by taking a blood sample and sending it to a laboratory to look for Coccidioides antibodies or antigens. […] Any healthcare provider can order a test for Valley Fever. […] Results from a blood test will usually be available in a few days. If your healthcare provider sends a sample to a laboratory to be cultured, the results could take a few days to a couple of weeks.

• #47 What’s New

  https://www.cdph.ca.gov/Programs/CID/DCDC/Pages/ValleyFeverDiagnosisOutcomes.aspx

  Valley Fever Diagnosis and Outcomes […] Most people with Valley fever don’t have symptoms. […] Some people with Valley fever develop symptoms 1-3 weeks after breathing in dust. […] Some people with Valley fever have symptoms that can last a month or more (but will usually get better without treatment). […] Some people with Valley fever may need treatment, but a doctor will determine what’s best. […] In rare cases, few people with Valley fever get disseminated disease, where the Valley fever fungus spreads to other parts of the body. […] In rare cases, few people with Valley fever may need treatment for the rest of their lives. […] The symptoms of Valley fever are similar to other respiratory diseases, including COVID-19 and flu. […] Laboratory tests are needed to know whether symptoms are caused by Valley fever (which is caused by a fungus) or COVID-19 or flu (caused by viruses).

• #48 Coccidioidomycosis Symptoms and Diagnosis | American Lung Association

  https://www.lung.org/lung-health-diseases/lung-disease-lookup/coccidioidomycosis/symptoms-diagnosis

  Valley fever can be difficult to diagnose because the symptoms are similar to other lung diseases. […] If Valley fever is suspected, a blood test can help determine your immune systems response to the fungus. […] Other tests that may help diagnose coccidioidomycosis are: Sputum samples, produced by coughing or obtained by bronchoscopy, to look for the fungus in a lab culture. […] If you have a history of Valley fever, there is a skin test available that your doctor may order to determine if your body has an immune response to the fungus that causes coccidioidomycosis. […] Healthcare providers outside the regions where the Coccidioides fungus is found may be less familiar with the disease, so diagnosis of coccidioidomycosis is often delayed and may require multiple doctors visits.

• #49 Coccidioidomycosis (Valley Fever) in Primary Care | AAFP

  https://www.aafp.org/pubs/afp/issues/2020/0215/p221.html

  Therefore, the diagnosis is usually made serologically, although serologic results can be falsely negative while the immune response develops or in patients who are immunocompromised. […] Enzyme immunoassay is the most commonly used initial serologic test, and it is usually positive one to three weeks after disease onset. […] Immunodiffusion is also typically performed to confirm the diagnosis and allay concerns about false-positive results. […] Negative results may warrant retesting if suspicion for coccidioidomycosis remains. […] An algorithm for the diagnostic approach to patients with suspected coccidioidomycosis is shown in Figure 3.

• #50 Coccidioidomycosis (Valley Fever) in Primary Care | AAFP

  https://www.aafp.org/pubs/afp/issues/2020/0215/p221.html

  Therefore, the diagnosis is usually made serologically, although serologic results can be falsely negative while the immune response develops or in patients who are immunocompromised. […] Enzyme immunoassay is the most commonly used initial serologic test, and it is usually positive one to three weeks after disease onset. […] Immunodiffusion is also typically performed to confirm the diagnosis and allay concerns about false-positive results. […] Negative results may warrant retesting if suspicion for coccidioidomycosis remains. […] An algorithm for the diagnostic approach to patients with suspected coccidioidomycosis is shown in Figure 3.

• #51 Southwest Journal of Pulmonary, Critical Care and Sleep – Pulmonary – Payer Coverage of Valley Fever Diagnostic Tests

  https://www.swjpcc.com/pulmonary/2021/12/11/payer-coverage-of-valley-fever-diagnostic-tests.html

  The nonspecific symptoms of Valley fever, or coccidioidomycosis, hinders its proper diagnosis. This results in unnecessary health care costs and antibiotic usage. Thus, this study seeks to determine the coverage of the Valley fever diagnostic test as provided by Arizona insurance companies to increase early diagnosis rates. […] Because the symptoms of Valley fever are similar to those of other respiratory illnesses, diagnosis and treatment is often delayed if a laboratory diagnosis is not pursued, most commonly by a simple blood test. For this reason, national guidelines recommend that patients should be tested for Valley fever if they have symptoms of pneumonia or Erythema nodosum and either live in or have recently travelled to areas where Coccidioides is found. […] Increasing Valley fever diagnosis rates could have numerous benefits. Routine serology testing in patients who are suspected to have pneumonia would help increase Valley fever diagnosis, and reduce antibiotic use, which is often used empirically in these patients without effect, since Valley fever is a fungal infection and does not respond to antibiotics.

• #52 Education & Awareness – Valley Fever Institute

  https://valleyfeverinstitute.com/education-and-awareness/

  The Valley Fever Institute strives to provide education on Valley Fever symptoms and the importance of seeking diagnosis and treatment to members of our community. […] It is estimated that approximately 75 percent of symptomatic cases of Valley Fever are undiagnosed or misdiagnosed. Even after a patient seeks medical attention, it can often take numerous visits and an average of five months to receive a diagnosis. […] Healthcare providers rely on your medical and travel history, symptoms, physical examinations, and laboratory tests to diagnose Valley Fever. The most common way that healthcare providers test for Valley Fever is by taking a blood sample and sending it to a laboratory to look for Coccidioides antibodies or antigens. […] Any healthcare provider can order a test for Valley Fever. […] Results from a blood test will usually be available in a few days. If your healthcare provider sends a sample to a laboratory to be cultured, the results could take a few days to a couple of weeks.

• #53 Order the Right Tests | Valley Fever Center For Excellence

  https://vfce.arizona.edu/valley-fever-people/order-right-tests

  Valley Fever diagnosis can be confirmed by: microscopic identification of the fungal spherules in an infected tissue, sputum or body fluid sample […] growing a culture of coccidioides spp. from a tissue specimen, sputum or body fluid […] detection of antibodies (serological tests specifically for Valley Fever) against the fungus in blood serum or other body fluids. A diagnosis of coccidioidomycosis is suspected only if a patient is known to have had exposure to the disease through travel or residence in an endemic area. If the serologic test for Valley Fever antibodies is positive, the laboratory then performs a titer. A titer is a measurement of the amount or concentration of antibodies a patient is making against the fungus […] While positive serological results almost always mean that a patient has Valley Fever, a third or more of patients with Valley Fever may actually have negative results. Therefore, it may be necessary to repeat the serologic test periodically. Valley Fever skin tests (coccidioidin or spherulin) indicate prior exposure to the fungus, but, because reactivity is lifelong, skin tests are not particularly helpful in diagnosing a current infection. Routine chest x-rays will commonly detect Valley Fever cavities in a person with no symptoms and who may be unaware of having had Valley Fever.

• #54 Application of Immunosignatures for Diagnosis of Valley Fever

  https://pmc.ncbi.nlm.nih.gov/articles/PMC4135907/

  The sensitivity of IDCF is 77%, and the sensitivity of IDTP is between 75 and 91%. […] Current VF diagnostic methods may produce false-negative results, resulting in late recognition of the disease, which adversely affects patient outcomes. […] We demonstrated that VF infection as assayed on the 10,000-peptide array has a distinct immunosignature relative to those of 2 bacterial and one other fungal infection. […] A total of 1,586 peptides were statistically significantly different between the classes. […] When tested against the VF infection and control samples, this array demonstrated increased sensitivity (100%) but poor specificity compared to that of the conventional IDCF assay. […] This increase in sensitivity but loss of specificity was evident in the samples with a CF titer of 0. […] We have demonstrated that the immunosignature platform has clinical diagnostic potential relative to VF infection.

• #55 Testing Algorithm for Coccidioidomycosis | Valley Fever | CDC

  https://www.cdc.gov/valley-fever/hcp/testing-algorithm/index.html

  Coccidioidomycosis (Valley fever) is an invasive fungal disease that often presents as community-acquired pneumonia in primary and urgent care settings. […] Coccidioidomycosis cannot be reliably distinguished from other causes of respiratory illness by signs or symptoms alone. […] Testing for coccidioidomycosis may be considered on the initial patient encounter or at a secondary visit, depending on situational factors. […] Consider testing on an initial presentation of community-acquired pneumonia (CAP) or erythema nodosum following recent respiratory symptoms who: […] Consider serologic testing by enzyme immunoassay (EIA) with immunodiffusion (ID) and complement fixation (CF). […] If the EIA is positive, clinicians may consider follow-up testing with ID and CF to rule out false positives and confirm the diagnosis.

• #56 Coccidioidomycosis and Valley Fever Workup: Approach Considerations, Serologic Studies, Cultures

  https://emedicine.medscape.com/article/215978-workup

  Observation of Coccidioides in a clinical specimen establishes the diagnosis. […] Coccidioides urinary antigenemia has been found positive in more than 70% of immunocompromised patients with HIV/AIDS or solid organ transplant; no reports on its sensitivity in less compromised or immunocompetent patients are available. […] Chest radiography is indicated, with further imaging studies as appropriate. Lumbar puncture is mandatory in patients with suspected meningitis. […] For more than half a century, detection of antibodies to coccidioidal antigens has been used to establish the diagnosis of coccidioidomycosis and to monitor patients undergoing therapy. […] Serologic tests for coccidioidomycosis measure titers of immunoglobulin M (IgM) or immunoglobulin G (IgG). […] The appearance of immunoglobulin M (IgM) or precipitin antibody against Coccidioides is the most sensitive serologic indication of early infection.

• #57 Coccidioidomycosis (Valley fever) – Dermatology Advisor

  https://www.dermatologyadvisor.com/home/decision-support-in-medicine/dermatology/coccidioidomycosis-valley-fever/

  The organism may also be identified by culture of skin biopsy specimens. If coccidioidomycosis is suspected, the laboratory should be alerted to the possibility, since cultures of coccidioidomycosis require special handing and potentially present a danger to laboratory personnel. […] In disseminated coccidioidomycosis, the serologic titer often correlates with the severity of the infection. When dissemination is present, Coccidioides titers of 1:16 or greater are often obtained. […] The clinical differential diagnosis of the acute exanthem includes an allergic drug eruption, viral exanthem, erythema multiforme, or severe generalized allergic contact dermatitis.

• #58 Order the Right Tests | Valley Fever Center For Excellence

  https://vfce.arizona.edu/valley-fever-people/order-right-tests

  Valley Fever diagnosis can be confirmed by: microscopic identification of the fungal spherules in an infected tissue, sputum or body fluid sample […] growing a culture of coccidioides spp. from a tissue specimen, sputum or body fluid […] detection of antibodies (serological tests specifically for Valley Fever) against the fungus in blood serum or other body fluids. A diagnosis of coccidioidomycosis is suspected only if a patient is known to have had exposure to the disease through travel or residence in an endemic area. If the serologic test for Valley Fever antibodies is positive, the laboratory then performs a titer. A titer is a measurement of the amount or concentration of antibodies a patient is making against the fungus […] While positive serological results almost always mean that a patient has Valley Fever, a third or more of patients with Valley Fever may actually have negative results. Therefore, it may be necessary to repeat the serologic test periodically. Valley Fever skin tests (coccidioidin or spherulin) indicate prior exposure to the fungus, but, because reactivity is lifelong, skin tests are not particularly helpful in diagnosing a current infection. Routine chest x-rays will commonly detect Valley Fever cavities in a person with no symptoms and who may be unaware of having had Valley Fever.

• #59 Application of Immunosignatures for Diagnosis of Valley Fever

  https://pmc.ncbi.nlm.nih.gov/articles/PMC4135907/

  Valley fever (VF) is difficult to diagnose, partly because the symptoms of VF are confounded with those of other community-acquired pneumonias. Confirmatory diagnostics detect IgM and IgG antibodies against coccidioidal antigens via immunodiffusion (ID). The false-negative rate can be as high as 50% to 70%, with 5% of symptomatic patients never showing detectable antibody levels. […] We propose utilizing the immunosignature diagnostic technology to address some or all of the limitations of current diagnostics for VF, particularly as a diagnosis for patients misclassified at the first test. […] The confirmatory diagnostic test for VF is an immunodiffusion (ID) assay, which detects antibodies against antigens within fungal coccidioidin causing complement fixation (CF) and tube precipitation (TP).

• #60 Application of Immunosignatures for Diagnosis of Valley Fever

  https://pmc.ncbi.nlm.nih.gov/articles/PMC4135907/

  Valley fever (VF) is difficult to diagnose, partly because the symptoms of VF are confounded with those of other community-acquired pneumonias. Confirmatory diagnostics detect IgM and IgG antibodies against coccidioidal antigens via immunodiffusion (ID). The false-negative rate can be as high as 50% to 70%, with 5% of symptomatic patients never showing detectable antibody levels. […] We propose utilizing the immunosignature diagnostic technology to address some or all of the limitations of current diagnostics for VF, particularly as a diagnosis for patients misclassified at the first test. […] The confirmatory diagnostic test for VF is an immunodiffusion (ID) assay, which detects antibodies against antigens within fungal coccidioidin causing complement fixation (CF) and tube precipitation (TP).

• #61 FAQs | Valley Fever Center For Excellence

  https://vfce.arizona.edu/valley-fever-people/faqs

  Diagnosis is obtained by use of a specific blood test (called a coccidioidal or cocci serology) which measures the level or titer of antibodies to the fungus. A positive titer is usually measured or reported in dilutions of the patient’s serum that continue to react to the fungal antigen. Titers are reported as 1:2, 1:4, etc. In early disease, the cocci serology must be repeated in 2-4 weeks if negative because the antibody level is too low to be detected. Culture of sputum, tissue, biopsies, or body fluids or histopathologic (microscopic) evidence from the same sources are diagnostic. The doctor also uses the x-ray as a means of following the progress of the disease. […] Yes. Depending upon the symptoms, it may be confused with cancer, tuberculosis, chronic obstructive pulmonary disease, chronic fatigue syndrome and others. However, if the specific blood test to measure antibodies against the fungus is performed along with chest x-rays, travel history through the Southwest, and when appropriate skin test results are performed and considered, a diagnosis is made. The isolation in laboratory culture of the causative fungus from sputum, tissue or body fluids is diagnostic as is the presence of the diagnostic spherules as seen in histopathology.

• #62 Coccidioidomycosis and Valley Fever Workup: Approach Considerations, Serologic Studies, Cultures

  https://emedicine.medscape.com/article/215978-workup

  Observation of Coccidioides in a clinical specimen establishes the diagnosis. […] Coccidioides urinary antigenemia has been found positive in more than 70% of immunocompromised patients with HIV/AIDS or solid organ transplant; no reports on its sensitivity in less compromised or immunocompetent patients are available. […] Chest radiography is indicated, with further imaging studies as appropriate. Lumbar puncture is mandatory in patients with suspected meningitis. […] For more than half a century, detection of antibodies to coccidioidal antigens has been used to establish the diagnosis of coccidioidomycosis and to monitor patients undergoing therapy. […] Serologic tests for coccidioidomycosis measure titers of immunoglobulin M (IgM) or immunoglobulin G (IgG). […] The appearance of immunoglobulin M (IgM) or precipitin antibody against Coccidioides is the most sensitive serologic indication of early infection.

• #63 Soil to Lungs: The Expanding Threat of Valley Fever

  https://www.contagionlive.com/view/soil-to-lungs-climate-change-and-the-expanding-threat-of-valley-fever

  Antigen Detection: This test detects fungal antigens in bodily fluids. It can be useful in delayed antibody production or immunocompromised patients who may not mount a robust antibody response. […] Molecular Tests: Polymerase Chain Reaction (PCR) tests can detect fungal DNA in a sample, offering a rapid and specific diagnosis. […] Imaging Tests: Chest X-rays or CT scans can provide supportive evidence of cocci. These tests can reveal characteristic changes in the lungs or other organs. […] Addressing the challenges of valley fever requires diagnosis, treatment, preventive strategies, and vaccine development.

• #64 Coccidioidomycosis – Wikipedia

  https://en.wikipedia.org/wiki/Coccidioidomycosis

  An indirect demonstration of fungal infection can also be achieved by serologic analysis detecting fungal antigen or host IgM or IgG antibody produced against the fungus. The available tests include the tube-precipitin (TP) assays, complement fixation assays, and enzyme immunoassays. TP antibody is not found in cerebrospinal fluid (CSF). TP antibody is specific and is used as a confirmatory test, whereas ELISA is sensitive and thus used for initial testing. […] If the meninges are affected, CSF will show abnormally low glucose levels, an increased level of protein, and lymphocytic pleocytosis. Rarely, CSF eosinophilia is present. […] Chest X-rays rarely demonstrate nodules or cavities in the lungs, but these images commonly demonstrate lung opacification, pleural effusions, or enlargement of lymph nodes associated with the lungs. Computed tomography scans of the chest are more sensitive than chest X-rays to detect these changes.

• #65 Navigating Valley Fever: A Guide For Rheumatology Patients In Arizona | Summit Rheumatology

  https://summitrheumatology.com/patient-lifestyle/navigating-valley-fever-a-guide-for-rheumatology-patients-in-arizona/

  Valley fever symptoms can range from mild to severe, resembling those of the flu. Common signs include: […] Rheumatology patients experiencing any of these symptoms should consult their healthcare provider promptly for proper evaluation and diagnosis. […] Blood tests and imaging studies, such as chest X-ray or CT scan, are used to detect characteristic patterns associated with valley fever. This may include a hollow nodule in the lungs called a granuloma or a calcified nodule in the lung, along with a positive blood test showing a high titer of fungal antibodies.

• #66 Coccidioidomycosis and Lymph Node Infections: Diagnosis & Care – The Kingsley Clinic

  https://thekingsleyclinic.com/resources/coccidioidomycosis-and-lymph-node-infections-diagnosis-care/

  Coccidioidomycosis, often referred to as “Valley Fever,” is a fungal infection caused by the Coccidioides species, which thrives in the soil of certain regions, particularly in the southwestern United States. […] This article provides a comprehensive overview of coccidioidomycosis with lymph node involvement, discussing its risk factors, symptoms, diagnostic approaches, treatment options, and home care strategies. […] Early diagnosis and treatment are critical to preventing further spread and managing symptoms effectively. […] According to the Centers for Disease Control and Prevention (CDC), approximately 150,000 cases of coccidioidomycosis are reported annually in the United States, with a small percentage progressing to disseminated disease. […] Diagnosis may involve imaging tests such as a chest X-ray or CT scan to identify granulomas in the lungs, a hallmark of sarcoidosis. A biopsy of affected tissue can confirm the presence of granulomas. Blood tests for coccidioidomycosis would be negative in cases of sarcoidosis, ruling out a fungal infection.

• #67 What’s New

  https://www.cdph.ca.gov/Programs/CID/DCDC/Pages/ValleyFeverDiagnosisOutcomes.aspx

  Not everyone needs to be tested or treated for Valley fever. […] People who do get sick with Valley fever may have symptoms like cough, fever, difficulty breathing, and fatigue that go away without any treatment. […] If you have symptoms of Valley fever that last longer than a week, talk to a doctor or healthcare provider. […] There are no over-the-counter medications to treat Valley fever. […] A doctor may order different tests (such as a blood test or chest X-ray) to help determine if you have Valley fever. […] If you are diagnosed with Valley fever, your doctor will determine if you need treatment. […] There are medications to treat Valley fever called antifungals, but not everyone needs them. […] Some people may need to take antifungal medication for months or even years if they have severe disease or certain health conditions that weaken the immune system.

• #68 What’s New

  https://www.cdph.ca.gov/Programs/CID/DCDC/Pages/ValleyFeverDiagnosisOutcomes.aspx

  People who may need antifungals include people with severe disease, people who take medications that weaken the immune system, people who have cancer, people with human immunodeficiency virus (HIV) infection, people who have had an organ transplant, and people who are pregnant. […] Your doctor will consider many factors when deciding if you need testing or treatment. […] Your doctor may also recommend that you see a specialist. […] Early detection is important, so if you have questions or think you may have Valley fever, talk to a doctor. […] Most people who have Valley fever will make a full recovery and won’t get sick from it again. […] Many Valley fever symptoms can go away within a few weeks. […] Some symptoms, especially fatigue, can take longer to go away and can sometimes last for several months.

• #69 What’s New

  https://www.cdph.ca.gov/Programs/CID/DCDC/Pages/ValleyFeverDiagnosisOutcomes.aspx

  Not everyone needs to be tested or treated for Valley fever. […] People who do get sick with Valley fever may have symptoms like cough, fever, difficulty breathing, and fatigue that go away without any treatment. […] If you have symptoms of Valley fever that last longer than a week, talk to a doctor or healthcare provider. […] There are no over-the-counter medications to treat Valley fever. […] A doctor may order different tests (such as a blood test or chest X-ray) to help determine if you have Valley fever. […] If you are diagnosed with Valley fever, your doctor will determine if you need treatment. […] There are medications to treat Valley fever called antifungals, but not everyone needs them. […] Some people may need to take antifungal medication for months or even years if they have severe disease or certain health conditions that weaken the immune system.

• #70 Valley Fever: Causes, Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/17754-valley-fever

  About 20,000 people are diagnosed with Valley fever each year. […] To diagnose Valley fever, your healthcare provider will perform a physical exam and ask you about your symptoms and travel history. They may order blood tests, imaging (chest X-ray or CT scan) or biopsies. […] To diagnose Valley fever, your healthcare provider may order some or all these tests: Blood tests are the most common way to diagnose Valley fever. Your provider uses a needle to take blood from your vein, which they then send to a lab to look for certain signs of coccidioides (antibodies or antigens). […] Your healthcare provider may prescribe antifungal treatments for Valley fever for three to six months. Your treatment may last longer depending on your case.

• #71 What’s New

  https://www.cdph.ca.gov/Programs/CID/DCDC/Pages/ValleyFeverDiagnosisOutcomes.aspx

  People who may need antifungals include people with severe disease, people who take medications that weaken the immune system, people who have cancer, people with human immunodeficiency virus (HIV) infection, people who have had an organ transplant, and people who are pregnant. […] Your doctor will consider many factors when deciding if you need testing or treatment. […] Your doctor may also recommend that you see a specialist. […] Early detection is important, so if you have questions or think you may have Valley fever, talk to a doctor. […] Most people who have Valley fever will make a full recovery and won’t get sick from it again. […] Many Valley fever symptoms can go away within a few weeks. […] Some symptoms, especially fatigue, can take longer to go away and can sometimes last for several months.

• #72 Valley fever cases in Arizona up nearly 50%

  https://www.usatoday.com/story/news/health/2024/11/22/valley-fever-cases-arizona/76476521007/

  Valley fever, also known by its clinical name coccidioidomycosis, is a lung infection that is rarely fatal and typically goes away without treatment. […] Diagnosis requires a blood test that’s not included in routine lab work when a person goes to the emergency room or urgent care, Galgiani said. Immediate testing and diagnosis can prevent wasted time trying drugs that are ineffective for Valley fever. […] Knowing the cause of pneumonia-like symptoms can make or break treatment for Valley fever. Pneumonia-like symptoms are typically treated with antibacterial or antiviral drugs, but those medicines are ineffective against Valley fever because it’s a fungal infection. […] For people with a severe infection, treatment can include taking an oral antifungal medication for three to six months, according to the Centers for Disease Control and Prevention.

• #73 Valley Fever: Causes, Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/17754-valley-fever

  About 20,000 people are diagnosed with Valley fever each year. […] To diagnose Valley fever, your healthcare provider will perform a physical exam and ask you about your symptoms and travel history. They may order blood tests, imaging (chest X-ray or CT scan) or biopsies. […] To diagnose Valley fever, your healthcare provider may order some or all these tests: Blood tests are the most common way to diagnose Valley fever. Your provider uses a needle to take blood from your vein, which they then send to a lab to look for certain signs of coccidioides (antibodies or antigens). […] Your healthcare provider may prescribe antifungal treatments for Valley fever for three to six months. Your treatment may last longer depending on your case.

• #74 What’s New

  https://www.cdph.ca.gov/Programs/CID/DCDC/Pages/ValleyFeverDiagnosisOutcomes.aspx

  Not everyone needs to be tested or treated for Valley fever. […] People who do get sick with Valley fever may have symptoms like cough, fever, difficulty breathing, and fatigue that go away without any treatment. […] If you have symptoms of Valley fever that last longer than a week, talk to a doctor or healthcare provider. […] There are no over-the-counter medications to treat Valley fever. […] A doctor may order different tests (such as a blood test or chest X-ray) to help determine if you have Valley fever. […] If you are diagnosed with Valley fever, your doctor will determine if you need treatment. […] There are medications to treat Valley fever called antifungals, but not everyone needs them. […] Some people may need to take antifungal medication for months or even years if they have severe disease or certain health conditions that weaken the immune system.

• #75 What’s New

  https://www.cdph.ca.gov/Programs/CID/DCDC/Pages/ValleyFeverDiagnosisOutcomes.aspx

  A small percentage of people develop long-term infections in the lungs or other parts of the body, such as in the bones or joints. […] In rare cases of disseminated disease, where the Valley fever fungus spreads outside of the lungs to other parts of the body (like the brain), a person may need to be treated with medication for the rest of their life. […] Severe Valley fever can be fatal, but this is rare. […] If a person has already had Valley fever, their immune system will most likely protect them from getting sick from it again. […] Although it is rare, some people who have already had Valley fever could get sick again if their immune system weakens because of certain medical conditions (such as cancer) or by taking certain medications, like those for cancer, organ transplant, or autoimmune disease.

• #76 Valley Fever Diagnosis Often Missed

  https://www.infectioncontroltoday.com/view/valley-fever-diagnosis-often-missed

  The guidelines recommend treatment with fluconazole for women with complications from valley fever who are in their second or third trimester of pregnancy. […] The guidelines include recommendations for primary care providers who can manage mild and moderate cases of valley fever once they have made the correct diagnosis, Galgiani said. Patients with complications and more severe infection should be referred to infectious diseases specialists.

• #77 FAQs | Valley Fever Center For Excellence

  https://vfce.arizona.edu/valley-fever-people/faqs

  Infectious disease specialists can treat patients with a diagnosed case of Valley fever. In endemic areas, pulmonary specialists and most primary care and family practitioners should be versed in the diagnosis and treatment of this disease. However, physicians in other parts of the country treat patients with Valley fever much less frequently and, therefore, may not consider it as a diagnosis. Be sure to tell your physician that you have been in the endemic area and request to be tested for Valley fever.

• #78 Valley Fever: Pathogenesis and Evolving Treatment Options

  https://pmc.ncbi.nlm.nih.gov/articles/PMC10774831/

  The diagnosis of coccidioidomycosis may require a multidisciplinary approach, involving infectious disease specialists, pulmonologists, and laboratory professionals with experience in fungal diagnostics. […] False-negative and false-positive results may occur in the laboratory tests for coccidioidomycosis, highlighting the need for careful interpretation of the results in conjunction with the patient’s clinical presentation. […] Therefore, the diagnosis of coccidioidomycosis involves a combination of clinical evaluation, laboratory tests to detect antibodies or the fungus itself, and imaging studies.

• #79 FAQs | Valley Fever Center For Excellence

  https://vfce.arizona.edu/valley-fever-people/faqs

  Diagnosis is obtained by use of a specific blood test (called a coccidioidal or cocci serology) which measures the level or titer of antibodies to the fungus. A positive titer is usually measured or reported in dilutions of the patient’s serum that continue to react to the fungal antigen. Titers are reported as 1:2, 1:4, etc. In early disease, the cocci serology must be repeated in 2-4 weeks if negative because the antibody level is too low to be detected. Culture of sputum, tissue, biopsies, or body fluids or histopathologic (microscopic) evidence from the same sources are diagnostic. The doctor also uses the x-ray as a means of following the progress of the disease. […] Yes. Depending upon the symptoms, it may be confused with cancer, tuberculosis, chronic obstructive pulmonary disease, chronic fatigue syndrome and others. However, if the specific blood test to measure antibodies against the fungus is performed along with chest x-rays, travel history through the Southwest, and when appropriate skin test results are performed and considered, a diagnosis is made. The isolation in laboratory culture of the causative fungus from sputum, tissue or body fluids is diagnostic as is the presence of the diagnostic spherules as seen in histopathology.

• #80 Coccidioidomycosis (Valley fever) – Dermatology Advisor

  https://www.dermatologyadvisor.com/home/decision-support-in-medicine/dermatology/coccidioidomycosis-valley-fever/

  The organism may also be identified by culture of skin biopsy specimens. If coccidioidomycosis is suspected, the laboratory should be alerted to the possibility, since cultures of coccidioidomycosis require special handing and potentially present a danger to laboratory personnel. […] In disseminated coccidioidomycosis, the serologic titer often correlates with the severity of the infection. When dissemination is present, Coccidioides titers of 1:16 or greater are often obtained. […] The clinical differential diagnosis of the acute exanthem includes an allergic drug eruption, viral exanthem, erythema multiforme, or severe generalized allergic contact dermatitis.

• #81 Testing for Valley Fever | Valley Fever | CDC

  https://www.cdc.gov/valley-fever/testing/index.html

  Healthcare providers can test your blood for Valley fever. […] Skin tests are sometimes used to see if you have or ever had Valley fever. […] If you are being tested for Valley fever, your healthcare provider will collect a blood sample and send it to a laboratory. In a few days after receiving results, they should be able to tell you if you have Valley fever. […] Your healthcare provider may do a skin test to see if you had Valley fever in the past or are currently infected. […] Positive test results may mean that you have Valley fever or did in the past. […] Negative test results may mean you have not had Valley fever. […] If your healthcare provider does not run tests, they may start by treating you for bacterial pneumonia. […] If you do not get better after antibiotic treatment, ask your doctor about testing for Valley fever or other fungal pneumonias.

• #82 Valley fever cases in Arizona up nearly 50%

  https://www.usatoday.com/story/news/health/2024/11/22/valley-fever-cases-arizona/76476521007/

  Valley fever, also known by its clinical name coccidioidomycosis, is a lung infection that is rarely fatal and typically goes away without treatment. […] Diagnosis requires a blood test that’s not included in routine lab work when a person goes to the emergency room or urgent care, Galgiani said. Immediate testing and diagnosis can prevent wasted time trying drugs that are ineffective for Valley fever. […] Knowing the cause of pneumonia-like symptoms can make or break treatment for Valley fever. Pneumonia-like symptoms are typically treated with antibacterial or antiviral drugs, but those medicines are ineffective against Valley fever because it’s a fungal infection. […] For people with a severe infection, treatment can include taking an oral antifungal medication for three to six months, according to the Centers for Disease Control and Prevention.

• #83 What’s New

  https://www.cdph.ca.gov/Programs/CID/DCDC/Pages/ValleyFeverDiagnosisOutcomes.aspx

  Valley Fever Diagnosis and Outcomes […] Most people with Valley fever don’t have symptoms. […] Some people with Valley fever develop symptoms 1-3 weeks after breathing in dust. […] Some people with Valley fever have symptoms that can last a month or more (but will usually get better without treatment). […] Some people with Valley fever may need treatment, but a doctor will determine what’s best. […] In rare cases, few people with Valley fever get disseminated disease, where the Valley fever fungus spreads to other parts of the body. […] In rare cases, few people with Valley fever may need treatment for the rest of their lives. […] The symptoms of Valley fever are similar to other respiratory diseases, including COVID-19 and flu. […] Laboratory tests are needed to know whether symptoms are caused by Valley fever (which is caused by a fungus) or COVID-19 or flu (caused by viruses).

• #84 FAQs | Valley Fever Center For Excellence

  https://vfce.arizona.edu/valley-fever-people/faqs

  Diagnosis is obtained by use of a specific blood test (called a coccidioidal or cocci serology) which measures the level or titer of antibodies to the fungus. A positive titer is usually measured or reported in dilutions of the patient’s serum that continue to react to the fungal antigen. Titers are reported as 1:2, 1:4, etc. In early disease, the cocci serology must be repeated in 2-4 weeks if negative because the antibody level is too low to be detected. Culture of sputum, tissue, biopsies, or body fluids or histopathologic (microscopic) evidence from the same sources are diagnostic. The doctor also uses the x-ray as a means of following the progress of the disease. […] Yes. Depending upon the symptoms, it may be confused with cancer, tuberculosis, chronic obstructive pulmonary disease, chronic fatigue syndrome and others. However, if the specific blood test to measure antibodies against the fungus is performed along with chest x-rays, travel history through the Southwest, and when appropriate skin test results are performed and considered, a diagnosis is made. The isolation in laboratory culture of the causative fungus from sputum, tissue or body fluids is diagnostic as is the presence of the diagnostic spherules as seen in histopathology.

• #85 FAQs | Valley Fever Center For Excellence

  https://vfce.arizona.edu/valley-fever-people/faqs

  Diagnosis is obtained by use of a specific blood test (called a coccidioidal or cocci serology) which measures the level or titer of antibodies to the fungus. A positive titer is usually measured or reported in dilutions of the patient’s serum that continue to react to the fungal antigen. Titers are reported as 1:2, 1:4, etc. In early disease, the cocci serology must be repeated in 2-4 weeks if negative because the antibody level is too low to be detected. Culture of sputum, tissue, biopsies, or body fluids or histopathologic (microscopic) evidence from the same sources are diagnostic. The doctor also uses the x-ray as a means of following the progress of the disease. […] Yes. Depending upon the symptoms, it may be confused with cancer, tuberculosis, chronic obstructive pulmonary disease, chronic fatigue syndrome and others. However, if the specific blood test to measure antibodies against the fungus is performed along with chest x-rays, travel history through the Southwest, and when appropriate skin test results are performed and considered, a diagnosis is made. The isolation in laboratory culture of the causative fungus from sputum, tissue or body fluids is diagnostic as is the presence of the diagnostic spherules as seen in histopathology.

• #86 Coccidioidomycosis and Lymph Node Infections: Diagnosis & Care – The Kingsley Clinic

  https://thekingsleyclinic.com/resources/coccidioidomycosis-and-lymph-node-infections-diagnosis-care/

  Coccidioidomycosis, often referred to as “Valley Fever,” is a fungal infection caused by the Coccidioides species, which thrives in the soil of certain regions, particularly in the southwestern United States. […] This article provides a comprehensive overview of coccidioidomycosis with lymph node involvement, discussing its risk factors, symptoms, diagnostic approaches, treatment options, and home care strategies. […] Early diagnosis and treatment are critical to preventing further spread and managing symptoms effectively. […] According to the Centers for Disease Control and Prevention (CDC), approximately 150,000 cases of coccidioidomycosis are reported annually in the United States, with a small percentage progressing to disseminated disease. […] Diagnosis may involve imaging tests such as a chest X-ray or CT scan to identify granulomas in the lungs, a hallmark of sarcoidosis. A biopsy of affected tissue can confirm the presence of granulomas. Blood tests for coccidioidomycosis would be negative in cases of sarcoidosis, ruling out a fungal infection.

• #87 FAQs | Valley Fever Center For Excellence

  https://vfce.arizona.edu/valley-fever-people/faqs

  Diagnosis is obtained by use of a specific blood test (called a coccidioidal or cocci serology) which measures the level or titer of antibodies to the fungus. A positive titer is usually measured or reported in dilutions of the patient’s serum that continue to react to the fungal antigen. Titers are reported as 1:2, 1:4, etc. In early disease, the cocci serology must be repeated in 2-4 weeks if negative because the antibody level is too low to be detected. Culture of sputum, tissue, biopsies, or body fluids or histopathologic (microscopic) evidence from the same sources are diagnostic. The doctor also uses the x-ray as a means of following the progress of the disease. […] Yes. Depending upon the symptoms, it may be confused with cancer, tuberculosis, chronic obstructive pulmonary disease, chronic fatigue syndrome and others. However, if the specific blood test to measure antibodies against the fungus is performed along with chest x-rays, travel history through the Southwest, and when appropriate skin test results are performed and considered, a diagnosis is made. The isolation in laboratory culture of the causative fungus from sputum, tissue or body fluids is diagnostic as is the presence of the diagnostic spherules as seen in histopathology.

• #88 FAQs | Valley Fever Center For Excellence

  https://vfce.arizona.edu/valley-fever-people/faqs

  Diagnosis is obtained by use of a specific blood test (called a coccidioidal or cocci serology) which measures the level or titer of antibodies to the fungus. A positive titer is usually measured or reported in dilutions of the patient’s serum that continue to react to the fungal antigen. Titers are reported as 1:2, 1:4, etc. In early disease, the cocci serology must be repeated in 2-4 weeks if negative because the antibody level is too low to be detected. Culture of sputum, tissue, biopsies, or body fluids or histopathologic (microscopic) evidence from the same sources are diagnostic. The doctor also uses the x-ray as a means of following the progress of the disease. […] Yes. Depending upon the symptoms, it may be confused with cancer, tuberculosis, chronic obstructive pulmonary disease, chronic fatigue syndrome and others. However, if the specific blood test to measure antibodies against the fungus is performed along with chest x-rays, travel history through the Southwest, and when appropriate skin test results are performed and considered, a diagnosis is made. The isolation in laboratory culture of the causative fungus from sputum, tissue or body fluids is diagnostic as is the presence of the diagnostic spherules as seen in histopathology.

• #89 Soil to Lungs: The Expanding Threat of Valley Fever

  https://www.contagionlive.com/view/soil-to-lungs-climate-change-and-the-expanding-threat-of-valley-fever

  Coccidioides is a fungus found in soil that causes coccidioidomycosis, commonly called valley fever. […] Valley fever is often misdiagnosed as an infection caused by a bacteria or virus, leading to delays in the necessary antifungal treatment and sometimes contributing to the unnecessary use of other medicines. […] According to recent CDC reports, cocci, along with other fungal infections like histoplasmosis and blastomycosis, showed a decrease in cases in the years 2019 and 2021, attributed to misdiagnoses due to symptom similarities with COVID-19. […] We could do better with diagnosing across the board year after year, I think statistics show that in the state of Arizona, appropriate testing in primary care and emergency rooms data that were generated in urgent care suggests that before 2020, it was less than 10% of people who should be tested were tested, according to Galgiani.

• #90 FAQs | Valley Fever Center For Excellence

  https://vfce.arizona.edu/valley-fever-people/faqs

  Diagnosis is obtained by use of a specific blood test (called a coccidioidal or cocci serology) which measures the level or titer of antibodies to the fungus. A positive titer is usually measured or reported in dilutions of the patient’s serum that continue to react to the fungal antigen. Titers are reported as 1:2, 1:4, etc. In early disease, the cocci serology must be repeated in 2-4 weeks if negative because the antibody level is too low to be detected. Culture of sputum, tissue, biopsies, or body fluids or histopathologic (microscopic) evidence from the same sources are diagnostic. The doctor also uses the x-ray as a means of following the progress of the disease. […] Yes. Depending upon the symptoms, it may be confused with cancer, tuberculosis, chronic obstructive pulmonary disease, chronic fatigue syndrome and others. However, if the specific blood test to measure antibodies against the fungus is performed along with chest x-rays, travel history through the Southwest, and when appropriate skin test results are performed and considered, a diagnosis is made. The isolation in laboratory culture of the causative fungus from sputum, tissue or body fluids is diagnostic as is the presence of the diagnostic spherules as seen in histopathology.

• #91 Coccidioidomycosis (Valley Fever) in Primary Care | AAFP

  https://www.aafp.org/pubs/afp/issues/2020/0215/p221.html

  Primary pulmonary coccidioidomycosis (valley fever) is caused by inhaling airborne spores of the fungus Coccidioides immitis or Coccidioides posadasii. […] Diagnosis usually relies on enzyme immunoassay with immunodiffusion confirmation, but these tests may not be positive for one to three weeks after disease onset. […] The diagnosis of coccidioidomycosis should be considered in all patients presenting with community-acquired pneumonia if they live in or have traveled to an endemic area in the previous two months; the diagnosis can essentially be ruled out if the patient has no such travel history. […] Laboratory testing is required for a definitive diagnosis of coccidioidomycosis. […] The detection of Coccidioides in any clinical specimen by culture or microscopy is the diagnostic standard, but these results are not instantly available, and obtaining samples can be problematic.

• #92 Valley Fever Diagnosis Often Missed

  https://www.infectioncontroltoday.com/view/valley-fever-diagnosis-often-missed

  For patients with pneumonia or ongoing influenza-like symptoms who live in or have visited the west or southwest United States, especially Arizona and central California, infectious diseases experts recommend physicians suspect valley fever, an often-overlooked fungal infection. Early diagnosis ensures the best management and reduces unneeded tests and treatment, note updated guidelines released by the Infectious Diseases Society of America (IDSA) and published in the journal Clinical Infectious Disease. […] The guidelines note valley fever can be diagnosed with simple blood tests called enzyme-linked immunosorbent assays (EIA), which test for antibodies to the fungus. Because it may take weeks or months for an EIA to show a positive result, taking a culture of the fungus from the sputum is another option.

• #93 Southwest Journal of Pulmonary, Critical Care and Sleep – Pulmonary – Payer Coverage of Valley Fever Diagnostic Tests

  https://www.swjpcc.com/pulmonary/2021/12/11/payer-coverage-of-valley-fever-diagnostic-tests.html

  However, based upon the favorable response we received from payers that did provide information, it is likely that most of the insurers unable to provide information do cover the Valley fever diagnostic test. […] This study highlights an important step of identifying payer coverage for Valley fever diagnosis in an urgent care setting. These results may help to inform providers about insurance coverage for their patients and increase early diagnosis of Valley fever cases.

• #94 Education & Awareness – Valley Fever Institute

  https://valleyfeverinstitute.com/education-and-awareness/

  The Valley Fever Institute strives to provide education on Valley Fever symptoms and the importance of seeking diagnosis and treatment to members of our community. […] It is estimated that approximately 75 percent of symptomatic cases of Valley Fever are undiagnosed or misdiagnosed. Even after a patient seeks medical attention, it can often take numerous visits and an average of five months to receive a diagnosis. […] Healthcare providers rely on your medical and travel history, symptoms, physical examinations, and laboratory tests to diagnose Valley Fever. The most common way that healthcare providers test for Valley Fever is by taking a blood sample and sending it to a laboratory to look for Coccidioides antibodies or antigens. […] Any healthcare provider can order a test for Valley Fever. […] Results from a blood test will usually be available in a few days. If your healthcare provider sends a sample to a laboratory to be cultured, the results could take a few days to a couple of weeks.

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