Materiały źródłowe

• #1 Viral gastroenteritis (stomach flu) – Symptoms & causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/viral-gastroenteritis/symptoms-causes/syc-20378847

  Viral gastroenteritis is an intestinal infection that includes signs and symptoms such as watery diarrhea, stomach cramps, nausea or vomiting, and sometimes fever. […] The flu (influenza) affects only your respiratory system — your nose, throat and lungs. Gastroenteritis, on the other hand, attacks your intestines, causing signs and symptoms such as: Watery, usually nonbloody diarrhea — bloody diarrhea usually means you have a different, more severe infection; Nausea, vomiting or both; Stomach cramps and pain; Occasional muscle aches or headache; Low-grade fever. […] Depending on the cause, viral gastroenteritis symptoms may appear within 1-3 days after you’re infected and can range from mild to severe. Symptoms usually last just a day or two, but occasionally they may last up to 14 days.

• #2 About Norovirus | Norovirus | CDC

  https://www.cdc.gov/norovirus/about/index.html

  Norovirus is a very contagious virus that causes vomiting and diarrhea. […] It is sometimes called the „stomach flu” or the „stomach bug.” However, norovirus illness is not related to the flu. The flu is caused by the influenza virus. Norovirus causes acute gastroenteritis, an inflammation of the stomach or intestines. […] A person usually develops symptoms 12 to 48 hours after being exposed to norovirus. […] Most common symptoms: Diarrhea, vomiting, nausea, stomach pain […] Other symptoms: Fever, headache, and body aches. […] If you have norovirus illness, you can feel extremely ill, and vomit or have diarrhea many times a day. This can lead to dehydration (loss of body fluids), especially in young children, older adults, and people with other illnesses. Symptoms of dehydration include: Decreased urination, Dry mouth and throat, Feeling dizzy when standing up, Crying with few or no tears, Unusual sleepiness or fussiness. […] Most people with norovirus illness get better within 1 to 3 days.

• #3 Influenza or Stomach Flu (Gastroenteritis)?

  https://www.webmd.com/cold-and-flu/stomach-flu-not-influenza

  Sometimes people mistake symptoms of stomach flu, or gastroenteritis, for the viral infection we commonly call „flu.” But theyre not the same. […] Stomach flu happens when your stomach and intestines (also called the gastrointestinal or GI tract) are inflamed and irritated. […] They can include: Cramps in your belly or sides, Stomach pain, Nausea, Vomiting, Diarrhea, Fever. […] In severe cases, days of throwing up and having diarrhea (or both) can cause your body to lose a lot of fluid. If you lose too much, you may need medical attention. Sometimes it can be life threatening. Signs to watch for include: Sunken eyes, Lightheadedness, Being more thirsty, Dry or sticky mouth, Lack of normal elasticity of the skin, Peeing less, Fewer tears. […] If you have symptoms of stomach flu and are weak and dizzy, you may be dehydrated. Call your doctor if you have these symptoms: Blood in your vomit or poop, Dehydration — you cant pee, or theres very little when you do go, youre very thirsty, cant make tears, and your mouth is always dry, Fever of 100.4 degrees F or higher in an infant or 102.2 degrees F or higher in an older child or adult, Swollen tummy or pain in the right lower part of the belly, Vomiting that lasts more than 48 hours. […] If you cant keep fluids down and youre losing them from fever, vomiting, and diarrhea, get emergency medical help.

• #4 Stages of the Stomach Flu: What to Know

  https://www.healthline.com/health/stomach-flu-stages

  The stomach flu is clinically known as viral or infectious gastroenteritis. […] Norovirus is the most common cause of the stomach flu, but other viruses, including rotavirus, adenovirus, and astrovirus, may also lead to symptoms. […] Once the incubation period is over, common first symptoms include nausea, vomiting, and non-bloody loose or watery diarrhea. Other symptoms may include fever, abdominal pain, and cramping. The acute stage usually lasts 1 to 3 days. […] Viral gastroenteritis is highly contagious during the acute symptoms stage. […] The stages of the stomach flu may vary in intensity and duration depending on factors like your overall health status, ongoing hydration efforts, and the virus that caused the symptoms. […] In general, you should start feeling better within a few days of experiencing the first symptoms. If you don’t, consider contacting a medical professional for an assessment. In children, medical care is often required if severe diarrhea and vomiting last for more than 2 days or worsen over time.

• #5 Is It Stomach Bug, Stomach Flu, or Food Poisoning? | University Hospitals

  https://www.uhhospitals.org/blog/articles/2021/04/is-it-stomach-bug-stomach-flu-or-food-poisoning

  Stomach flu and stomach bug are informal terms for viral gastroenteritis, a sickness in which a viral infection causes inflammation in the stomach and intestines. […] Common symptoms of viral gastroenteritis include: Nausea and/or vomiting, Diarrhea, Stomach cramps, muscle aches or weakness, Loss of appetite, Low-grade fever, Headaches, Light-headedness or dizziness. […] Most people develop viral gastroenteritis symptoms within 24 to 72 hours of exposure to a virus. […] Several viruses are the cause of viral gastroenteritis, among them norovirus, rotavirus, adenovirus and astroviruses. […] The most common way to contract stomach flu is through direct contact with someone who is already sick. […] If the cause of your stomach illness is viral, the treatment is to increase fluids, replenish electrolytes, get rest, and take over-the-counter medicines to reduce fever while the virus runs its course. Most cases of the stomach flu resolve within a few days, though people can feel sick for as many as 10 days or more. […] Food poisoning and viral gastroenteritis can become severe enough to require medical attention. However, in most cases, people can effectively manage either condition with proper rest, hydration and at-home medical treatment.

• #6 The Difference: Stomach Flu vs. Food Poisoning | Banner Health

  https://www.bannerhealth.com/healthcareblog/teach-me/stomach-flu-or-food-poisoning-how-to-tell-the-difference

  Stomach flu is mainly caused by viruses like norovirus, rotavirus or adenovirus, though bacteria can also cause it. These germs spread through contaminated food, water, surfaces or close contact with someone who is sick. Stomach flu is especially common in crowded places like schools and daycare centers. […] Viral gastroenteritis is usually spread through the fecal-oral route, such as unwashed hands after using the bathroom or changing a baby’s diaper, Dr. Hinz said. Certain viruses like norovirus can also be inhaled in the air from nearby vomit (throw up). […] While nausea, vomiting, diarrhea and stomach cramping are common with both conditions, the stomach flu may also include symptoms like fever, chills and body aches. […] Most cases of stomach flu and food poisoning can be managed at home with rest and hydration.

• #7 Viral gastroenteritis (stomach flu) – Symptoms & causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/viral-gastroenteritis/symptoms-causes/syc-20378847

  Viral gastroenteritis is an intestinal infection that includes signs and symptoms such as watery diarrhea, stomach cramps, nausea or vomiting, and sometimes fever. […] The flu (influenza) affects only your respiratory system — your nose, throat and lungs. Gastroenteritis, on the other hand, attacks your intestines, causing signs and symptoms such as: Watery, usually nonbloody diarrhea — bloody diarrhea usually means you have a different, more severe infection; Nausea, vomiting or both; Stomach cramps and pain; Occasional muscle aches or headache; Low-grade fever. […] Depending on the cause, viral gastroenteritis symptoms may appear within 1-3 days after you’re infected and can range from mild to severe. Symptoms usually last just a day or two, but occasionally they may last up to 14 days.

• #8 Stomach Flu: Symptoms, Causes & Treatment

  https://my.clevelandclinic.org/health/diseases/12418-stomach-flu

  Stomach flu, viral gastroenteritis, is a viral infection in your digestive system. It causes gastrointestinal symptoms like vomiting and diarrhea. Its usually brief, but can be very contagious. […] The most common stomach flu symptoms are nausea, vomiting and diarrhea. With stomach flu, gastrointestinal symptoms often come on suddenly. […] The most common stomach flu symptoms are: Diarrhea. Nausea and vomiting. Loss of appetite. Abdominal pain and cramping. […] For many people, stomach flu symptoms seem to come on suddenly and out of nowhere. You might throw up or have diarrhea many times on that first day. Symptoms occur one to two days after you were exposed to the virus. Fortunately, theyre usually over just as quickly, resolving in one to two days. […] The stages of stomach flu infection are: Exposure. Incubation. Acute infection. Recovery.

• #9 Symptoms & Causes of Viral Gastroenteritis (“Stomach Flu”) – NIDDK

  https://www.niddk.nih.gov/health-information/digestive-diseases/viral-gastroenteritis/symptoms-causes

  The symptoms of viral gastroenteritis include watery diarrhea, pain or cramping in your abdomen, nausea or vomiting, and sometimes fever. […] Symptoms of dehydration, the most common complication of viral gastroenteritis, may include extreme thirst and dry mouth, urinating less than usual, feeling tired, dark-colored urine, decreased skin turgor, sunken eyes or cheeks, and light-headedness or fainting. […] The symptoms listed below may suggest that an adult or child has a severe case of viral gastroenteritis, dehydration, or a more serious health problem instead of viral gastroenteritis. […] Adults with any of the following symptoms should see a doctor right away: change in mental state, such as irritability or lack of energy, diarrhea lasting more than 2 days, high fever, vomiting often, six or more loose stools in a day, severe pain in the abdomen or rectum, stools that are black and tarry or contain blood or pus, and symptoms of dehydration.

• #10 Stomach Flu – Symptoms, Causes, and Treatment | Medanta

  https://www.medanta.org/hospitals-near-me/gurugram-hospital/speciality/gi-surgery/disease/stomach-flu

  Stomach flu, also known as viral gastroenteritis, is a common condition that can cause a variety of uncomfortable symptoms. These stomach flu symptoms are typically caused by a viral infection that affects the digestive system, and they can vary in severity depending on the individual and the specific virus causing the illness. […] The most common stomach flu symptoms include: […] Nausea and vomiting are often the first symptoms of stomach flu. These symptoms can range from mild to severe and may last for several hours or days. In some cases, vomiting can be so severe that it leads to dehydration, which can be dangerous if left untreated. […] Diarrhoea is another common symptom of stomach flu. It is characterised by loose or watery stools and can be accompanied by abdominal cramps or pain. Diarrhoea can also lead to dehydration if not managed properly.

• #11 Stomach Flu – Symptoms, Causes, and Treatment | Medanta

  https://www.medanta.org/hospitals-near-me/gurugram-hospital/speciality/gi-surgery/disease/stomach-flu

  Abdominal pain and cramps are common symptoms of stomach flu. These symptoms can range from mild discomfort to severe pain and may be accompanied by bloating or gas. […] Fever is a common symptom of many viral infections, including stomach flu. It is characterised by an elevated body temperature, typically above 100.4F (38C). Fever is usually a sign that the body is fighting off an infection. […] Headache is another common symptom of stomach flu. It may be caused by dehydration, fever, or the virus itself. Headaches can range from mild to severe and may be accompanied by other symptoms such as nausea or fatigue. […] Muscle aches and weakness are common symptoms of stomach flu. These symptoms may be caused by dehydration, fever, or the virus itself. They can range from mild discomfort to severe pain and may affect the entire body or specific muscle groups.

• #12 Stomach flu: How long am I contagious?

  https://www.mayoclinic.org/diseases-conditions/viral-gastroenteritis/expert-answers/stomach-flu/faq-20057899

  You can pass stomach flu, also known as gastroenteritis, to others from a few days up to two weeks or more. The time depends on which virus is causing your illness. […] Norovirus is the most common cause of viral gastroenteritis. With norovirus, you can be contagious before you feel ill. Symptoms usually appear within 1 to 2 days being exposed to the virus. […] Most people with norovirus feel better a day or two after their symptoms begin. But they’re contagious for a few days after they recover. The virus can stay in the stool for two weeks or more after recovery. […] Symptoms of rotavirus usually appear 1 to 3 days after a person is in contact with the virus and last 3 to 8 days. […] But people with rotavirus are contagious even before they develop symptoms. They’re still contagious up to two weeks after they’ve recovered.

• #13 Viral Gastroenteritis (Stomach Flu): Symptoms and Treatment

  https://www.healthline.com/health/viral-gastroenteritis

  Viral gastroenteritis can cause nausea and vomiting. […] Symptoms of gastroenteritis usually begin shortly after infection. For example, symptoms caused by norovirus typically develop within 12 to 48 hours. Symptoms from adenoviruses may be delayed 3 to 10 days after contact. […] Depending on which type of virus you’ve contracted, symptoms can last anywhere from 1 to 14 days. Symptoms often start suddenly over the course of 1 or 2 hours. […] Symptoms can include: loose, watery diarrhea more than 3 times per day, fever or chills, nausea and vomiting, headache, muscle aches, or joint aches, sweating or clammy skin, abdominal cramps and pain, loss of appetite. […] Diarrhea caused by viral gastroenteritis isn’t usually bloody. Blood in your stool could be a sign of a more severe infection.

• #14 How to prevent (and recover from) norovirus, the stomach bug that’s surging – UChicago Medicine

  https://www.uchicagomedicine.org/forefront/health-and-wellness-articles/2025/january/norovirus

  Norovirus is most commonly known as the stomach flu, but it is not caused by the influenza virus. Its a different, highly contagious virus that generally spreads via hand-to-mouth contact about 12 to 36 hours after exposure and cases are on the rise. […] Norovirus symptoms can be rough. Because the virus causes gastroenteritis, an inflammation of the stomach or intestines, patients may expect several days of vomiting and diarrhea often at the same time as well as body aches, fever and chills. […] Its debilitation in the sense that youre really not going to leave the house because of the stomach pain and the overwhelming nausea and diarrhea, said Pawlowski, who offered advice for preventing and treating norovirus. […] Norovirus symptoms should typically resolve in 3 to 5 days, Pawlowski said. But the virus remains active in stool for a week after symptoms go away.

• #15 Counting the days: how long does stomach flu last? | CityMD

  https://www.citymd.com/health-and-wellness/counting-the-days-how-long-does-stomach-flu-last

  The first signs of stomach flu […] Heres how to spot the initial signs of the stomach flu. Nausea and queasiness. The stomach flu often begins with a feeling of nausea. Vomiting. Unfortunately, that queasiness may lead to vomiting which is your body’s way of getting rid of whatever is irritating it. Diarrhea. Alongside or sometimes, instead of vomiting, you may experience diarrhea. Abdominal cramps. These abdominal cramps may vary in intensity but often indicate an underlying issue. Low-grade fever. Your body’s natural defense mechanism might kick in, leading to a slight increase in body temperature. Fatigue. Are you feeling unusually tired or weak? The stomach flu can really zap your energy. Loss of appetite. That food you were craving suddenly doesn’t sound appealing at all. It is common not to feel hungry when you have the stomach flu.

• #16 What You Can Do to Fend Off the Stomach Flu – West Tennessee Healthcare

  https://www.wth.org/blog/what-can-you-do-to-fend-off-the-stomach-flu/

  When stomach flu hits, it hits hard. The initial stages start with chills, fever, and nausea, which transition into vomiting, diarrhea, and severe aches and pains. […] Stomach flu symptoms include stomach pain, nausea, vomiting and diarrhea, said Nwokolo. A low-grade fever, chills and muscle aches arent uncommon to experience as well. Symptoms can start as little as 12 hours after exposure. These symptoms can last anywhere from one to 14 days, and unfortunately, the stomach flu is extremely contagious. […] There is no specific treatment for the stomach flu. People can usually manage stomach flu symptoms with home remedies such as resting, drinking fluids, and eating certain foods. Home treatment can help prevent dehydration and ease symptoms. Rest may give the body time to recover and heal.

• #17 Viral Gastroenteritis (Stomach Flu): Symptoms and Treatment

  https://www.healthline.com/health/viral-gastroenteritis

  Viral gastroenteritis can cause nausea and vomiting. […] Symptoms of gastroenteritis usually begin shortly after infection. For example, symptoms caused by norovirus typically develop within 12 to 48 hours. Symptoms from adenoviruses may be delayed 3 to 10 days after contact. […] Depending on which type of virus you’ve contracted, symptoms can last anywhere from 1 to 14 days. Symptoms often start suddenly over the course of 1 or 2 hours. […] Symptoms can include: loose, watery diarrhea more than 3 times per day, fever or chills, nausea and vomiting, headache, muscle aches, or joint aches, sweating or clammy skin, abdominal cramps and pain, loss of appetite. […] Diarrhea caused by viral gastroenteritis isn’t usually bloody. Blood in your stool could be a sign of a more severe infection.

• #18

  https://continentalhospitals.com/diseases/viral-gastroenteritis/

  Viral gastroenteritis, commonly known as the stomach flu, is a highly contagious infection that affects the stomach and intestines. It is caused by various viruses, such as norovirus and rotavirus, and can lead to symptoms such as vomiting, diarrhea, abdominal pain, and fever. […] The most common symptoms of viral gastroenteritis include nausea, vomiting, diarrhea, abdominal pain or cramps, and sometimes fever. These symptoms typically appear within 24 to 48 hours after exposure to the virus. Nausea is often one of the first signs experienced by individuals with viral gastroenteritis. It is characterized by a feeling of queasiness or an urge to vomit. Vomiting may follow shortly after, causing further discomfort and dehydration. Diarrhea is another prevalent symptom of viral gastroenteritis. It involves frequent loose or watery bowel movements that can lead to significant fluid loss from the body. Abdominal pain or cramps may accompany diarrhea and can range from mild discomfort to severe distress. In some cases, individuals with viral gastroenteritis may also experience a low-grade fever. This fever is usually mild and short-lived but can contribute to overall feelings of malaise and fatigue. […] If you suspect you or someone else is experiencing Viral gastroenteritis, it is crucial to seek immediate medical attention by calling emergency services or consult with a Gastroenterologist.

• #19 Stages of the Stomach Flu: What to Know

  https://www.healthline.com/health/stomach-flu-stages

  The stomach flu is clinically known as viral or infectious gastroenteritis. […] Norovirus is the most common cause of the stomach flu, but other viruses, including rotavirus, adenovirus, and astrovirus, may also lead to symptoms. […] Once the incubation period is over, common first symptoms include nausea, vomiting, and non-bloody loose or watery diarrhea. Other symptoms may include fever, abdominal pain, and cramping. The acute stage usually lasts 1 to 3 days. […] Viral gastroenteritis is highly contagious during the acute symptoms stage. […] The stages of the stomach flu may vary in intensity and duration depending on factors like your overall health status, ongoing hydration efforts, and the virus that caused the symptoms. […] In general, you should start feeling better within a few days of experiencing the first symptoms. If you don’t, consider contacting a medical professional for an assessment. In children, medical care is often required if severe diarrhea and vomiting last for more than 2 days or worsen over time.

• #20 Stomach Flu: Symptoms, Causes & Treatment

  https://my.clevelandclinic.org/health/diseases/12418-stomach-flu

  Stomach flu, viral gastroenteritis, is a viral infection in your digestive system. It causes gastrointestinal symptoms like vomiting and diarrhea. Its usually brief, but can be very contagious. […] The most common stomach flu symptoms are nausea, vomiting and diarrhea. With stomach flu, gastrointestinal symptoms often come on suddenly. […] The most common stomach flu symptoms are: Diarrhea. Nausea and vomiting. Loss of appetite. Abdominal pain and cramping. […] For many people, stomach flu symptoms seem to come on suddenly and out of nowhere. You might throw up or have diarrhea many times on that first day. Symptoms occur one to two days after you were exposed to the virus. Fortunately, theyre usually over just as quickly, resolving in one to two days. […] The stages of stomach flu infection are: Exposure. Incubation. Acute infection. Recovery.

• #21 Stomach flu: How long am I contagious?

  https://www.mayoclinic.org/diseases-conditions/viral-gastroenteritis/expert-answers/stomach-flu/faq-20057899

  You can pass stomach flu, also known as gastroenteritis, to others from a few days up to two weeks or more. The time depends on which virus is causing your illness. […] Norovirus is the most common cause of viral gastroenteritis. With norovirus, you can be contagious before you feel ill. Symptoms usually appear within 1 to 2 days being exposed to the virus. […] Most people with norovirus feel better a day or two after their symptoms begin. But they’re contagious for a few days after they recover. The virus can stay in the stool for two weeks or more after recovery. […] Symptoms of rotavirus usually appear 1 to 3 days after a person is in contact with the virus and last 3 to 8 days. […] But people with rotavirus are contagious even before they develop symptoms. They’re still contagious up to two weeks after they’ve recovered.

• #22 Stomach Flu: Symptoms, Causes & Treatment

  https://my.clevelandclinic.org/health/diseases/12418-stomach-flu

  Stomach flu, viral gastroenteritis, is a viral infection in your digestive system. It causes gastrointestinal symptoms like vomiting and diarrhea. Its usually brief, but can be very contagious. […] The most common stomach flu symptoms are nausea, vomiting and diarrhea. With stomach flu, gastrointestinal symptoms often come on suddenly. […] The most common stomach flu symptoms are: Diarrhea. Nausea and vomiting. Loss of appetite. Abdominal pain and cramping. […] For many people, stomach flu symptoms seem to come on suddenly and out of nowhere. You might throw up or have diarrhea many times on that first day. Symptoms occur one to two days after you were exposed to the virus. Fortunately, theyre usually over just as quickly, resolving in one to two days. […] The stages of stomach flu infection are: Exposure. Incubation. Acute infection. Recovery.

• #23 Stomach flu: How long am I contagious?

  https://www.mayoclinic.org/diseases-conditions/viral-gastroenteritis/expert-answers/stomach-flu/faq-20057899

  You can pass stomach flu, also known as gastroenteritis, to others from a few days up to two weeks or more. The time depends on which virus is causing your illness. […] Norovirus is the most common cause of viral gastroenteritis. With norovirus, you can be contagious before you feel ill. Symptoms usually appear within 1 to 2 days being exposed to the virus. […] Most people with norovirus feel better a day or two after their symptoms begin. But they’re contagious for a few days after they recover. The virus can stay in the stool for two weeks or more after recovery. […] Symptoms of rotavirus usually appear 1 to 3 days after a person is in contact with the virus and last 3 to 8 days. […] But people with rotavirus are contagious even before they develop symptoms. They’re still contagious up to two weeks after they’ve recovered.

• #24 Stomach flu: How long am I contagious? – Hancock Health

  https://www.hancockhealth.org/mayo-health-library/stomach-flu-how-long-am-i-contagious/

  Norovirus is the most common cause of viral gastroenteritis. With norovirus, you can be contagious before you feel ill. Symptoms usually appear within 1 to 2 days being exposed to the virus. […] Most people with norovirus feel better a day or two after their symptoms begin. But they’re contagious for a few days after they recover. The virus can stay in the stool for two weeks or more after recovery. […] Symptoms of rotavirus usually appear 1 to 3 days after a person is in contact with the virus and last 3 to 8 days. […] But people with rotavirus are contagious even before they develop symptoms. They’re still contagious up to two weeks after they’ve recovered.

• #25 Stomach Flu – Symptoms, Causes, and Treatment | Medanta

  https://www.medanta.org/hospitals-near-me/gurugram-hospital/speciality/gi-surgery/disease/stomach-flu

  Fatigue is a common symptom of many viral infections, including stomach flu. It is characterised by a feeling of exhaustion or weakness and may be accompanied by other symptoms such as headache or muscle aches. […] In general, the symptoms of stomach flu can last for several days to a week, but they typically resolve on their own without any long-term complications. However, in some cases, the symptoms can be severe and may require medical attention. If you experience any severe symptoms such as dehydration, severe abdominal pain, or bloody diarrhoea, it is important to seek medical attention right away. […] Stomach flu can progress through several stages, including: […] Prodromal stage: This is the early stage of the illness, when symptoms such as nausea, vomiting, and diarrhoea may begin.

• #26 Stages of the Stomach Flu: What to Know

  https://www.healthline.com/health/stomach-flu-stages

  The stomach flu is clinically known as viral or infectious gastroenteritis. […] Norovirus is the most common cause of the stomach flu, but other viruses, including rotavirus, adenovirus, and astrovirus, may also lead to symptoms. […] Once the incubation period is over, common first symptoms include nausea, vomiting, and non-bloody loose or watery diarrhea. Other symptoms may include fever, abdominal pain, and cramping. The acute stage usually lasts 1 to 3 days. […] Viral gastroenteritis is highly contagious during the acute symptoms stage. […] The stages of the stomach flu may vary in intensity and duration depending on factors like your overall health status, ongoing hydration efforts, and the virus that caused the symptoms. […] In general, you should start feeling better within a few days of experiencing the first symptoms. If you don’t, consider contacting a medical professional for an assessment. In children, medical care is often required if severe diarrhea and vomiting last for more than 2 days or worsen over time.

• #27 Stomach Flu – Symptoms, Causes, and Treatment | Medanta

  https://www.medanta.org/hospitals-near-me/gurugram-hospital/speciality/gi-surgery/disease/stomach-flu

  Acute stage: This is the most severe stage of the illness when symptoms may be at their worst. This stage can last for several days. […] Recovery stage: This is the period of time when symptoms begin to improve, and the body starts to recover. It can take several days to a week to fully recover from stomach flu.

• #28 Stomach Flu (Viral Gastroenteritis) | Charleston GI | Schedule Appointment

  https://charlestongi.com/conditions/stomach-flu-viral-gastroenteritis/

  Stomach Flu (Viral Gastroenteritis) […] Viral gastroenteritis symptoms include nausea, vomiting, and diarrhea. […] Most commonly known as the stomach flu, viral gastroenteritis is an infection that affects both the stomach and intestines. […] Caused by a virus, symptoms may include diarrhea, abdominal cramps, nausea, and vomiting. […] The most common complication of the stomach flu is dehydration. […] Most cases of the stomach flu progress through these stages: Exposure, Incubation, Acute infection, Recovery. […] Symptoms often improve within a few days, but if they persist, contact your Charleston GI doctor. […] In most cases, symptoms like vomiting and diarrhea are unexpected and come on suddenly. Symptoms occur one to two days after exposure but don’t often last more than a few days.

• #29 Stomach Flu: Symptoms, Causes & Treatment

  https://my.clevelandclinic.org/health/diseases/12418-stomach-flu

  Stomach flu, viral gastroenteritis, is a viral infection in your digestive system. It causes gastrointestinal symptoms like vomiting and diarrhea. Its usually brief, but can be very contagious. […] The most common stomach flu symptoms are nausea, vomiting and diarrhea. With stomach flu, gastrointestinal symptoms often come on suddenly. […] The most common stomach flu symptoms are: Diarrhea. Nausea and vomiting. Loss of appetite. Abdominal pain and cramping. […] For many people, stomach flu symptoms seem to come on suddenly and out of nowhere. You might throw up or have diarrhea many times on that first day. Symptoms occur one to two days after you were exposed to the virus. Fortunately, theyre usually over just as quickly, resolving in one to two days. […] The stages of stomach flu infection are: Exposure. Incubation. Acute infection. Recovery.

• #30 How Long Does Stomach Flu Last: Stages & Duration – K Health

  https://khealth.com/learn/cold-and-flu/how-long-does-stomach-flu-last/

  This intestinal infection can cause pain and cramping in your stomach, nausea, vomiting, fever, and diarrhea. […] Common symptoms of the stomach flu include: Diarrhea (typically watery), Abdominal pain and/or cramping, Vomiting, Nausea, Fatigue, Chills, Low-grade fever, Loss of appetite, Muscle aches, Headache. […] Dehydration is the most common complication of viral gastroenteritis. […] Stomach flu symptoms are typically short in duration, but you can be contagious before and after symptoms appear depending on what type of virus you have (norovirus or rotavirus). […] In most cases of stomach flu, symptoms typically come on quickly and severely, letting you know immediately that something is wrong. […] For both norovirus and rotavirus, symptoms typically peak in the first day or two after they begin, and tend to be gone by the third day. […] Though it can feel endless, the worst part of the stomach flu rarely lasts longer than one to three days. […] However, symptoms can sometimes last for up to 10 days, and it can take a few weeks for your bowel habits to return to normal.

• #31 Counting the days: how long does stomach flu last? | CityMD

  https://www.citymd.com/health-and-wellness/counting-the-days-how-long-does-stomach-flu-last

  The duration of stomach flu can vary from person to person. On average, it typically lasts anywhere from 1 to 3 days. […] During the initial 24 to 72 hours, you’ll likely experience the most intense symptoms, including vomiting, diarrhea, and abdominal cramps. This is the acute phase of the illness. After this acute phase, you should notice a gradual improvement in your condition. Your symptoms may become less severe, and your energy levels may begin to return. […] While most cases of stomach flu resolve on their own, there are cases where you may need medical attention. If your symptoms are severe, persist beyond a week, or if you notice blood in your vomit or stool, consult a health care professional or visit CityMD urgent care. […] Understanding how long the stomach flu can last will help you navigate this temporary setback. Rest, hydration, and seeking medical guidance when necessary are keys to a swift and safe recovery.

• #32 Stomach Flu – Symptoms, Causes, and Treatment | Medanta

  https://www.medanta.org/hospitals-near-me/gurugram-hospital/speciality/gi-surgery/disease/stomach-flu

  Acute stage: This is the most severe stage of the illness when symptoms may be at their worst. This stage can last for several days. […] Recovery stage: This is the period of time when symptoms begin to improve, and the body starts to recover. It can take several days to a week to fully recover from stomach flu.

• #33 Stomach flu: How long am I contagious?

  https://www.mayoclinic.org/diseases-conditions/viral-gastroenteritis/expert-answers/stomach-flu/faq-20057899

  You can pass stomach flu, also known as gastroenteritis, to others from a few days up to two weeks or more. The time depends on which virus is causing your illness. […] Norovirus is the most common cause of viral gastroenteritis. With norovirus, you can be contagious before you feel ill. Symptoms usually appear within 1 to 2 days being exposed to the virus. […] Most people with norovirus feel better a day or two after their symptoms begin. But they’re contagious for a few days after they recover. The virus can stay in the stool for two weeks or more after recovery. […] Symptoms of rotavirus usually appear 1 to 3 days after a person is in contact with the virus and last 3 to 8 days. […] But people with rotavirus are contagious even before they develop symptoms. They’re still contagious up to two weeks after they’ve recovered.

• #34 Stomach Flu: Symptoms, Causes & Treatment

  https://my.clevelandclinic.org/health/diseases/12418-stomach-flu

  Stomach flu usually only lasts a few days, but it may last up to a week or two in severe cases. […] Yes, its very contagious. You should limit your contact with others when you have it. […] Youre most contagious during the acute phase of the infection (when you have symptoms) and for a few days after. However, you may still be a little contagious for up to two weeks after recovering. […] For most people, symptoms get better in a few days. Contact a healthcare provider if they arent improving. […] Its best to say isolated until two days after your symptoms have stopped. This is the time when youre most contagious.

• #35

• #36 Viral gastroenteritis (stomach flu) – Symptoms & causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/viral-gastroenteritis/symptoms-causes/syc-20378847

  Viral gastroenteritis is an intestinal infection that includes signs and symptoms such as watery diarrhea, stomach cramps, nausea or vomiting, and sometimes fever. […] The flu (influenza) affects only your respiratory system — your nose, throat and lungs. Gastroenteritis, on the other hand, attacks your intestines, causing signs and symptoms such as: Watery, usually nonbloody diarrhea — bloody diarrhea usually means you have a different, more severe infection; Nausea, vomiting or both; Stomach cramps and pain; Occasional muscle aches or headache; Low-grade fever. […] Depending on the cause, viral gastroenteritis symptoms may appear within 1-3 days after you’re infected and can range from mild to severe. Symptoms usually last just a day or two, but occasionally they may last up to 14 days.

• #37 Stomach Flu: Symptoms, Causes & Treatment

  https://my.clevelandclinic.org/health/diseases/12418-stomach-flu

  Stomach flu usually only lasts a few days, but it may last up to a week or two in severe cases. […] Yes, its very contagious. You should limit your contact with others when you have it. […] Youre most contagious during the acute phase of the infection (when you have symptoms) and for a few days after. However, you may still be a little contagious for up to two weeks after recovering. […] For most people, symptoms get better in a few days. Contact a healthcare provider if they arent improving. […] Its best to say isolated until two days after your symptoms have stopped. This is the time when youre most contagious.

• #38 How Long Does Stomach Flu Last: Stages & Duration – K Health

  https://khealth.com/learn/cold-and-flu/how-long-does-stomach-flu-last/

  This intestinal infection can cause pain and cramping in your stomach, nausea, vomiting, fever, and diarrhea. […] Common symptoms of the stomach flu include: Diarrhea (typically watery), Abdominal pain and/or cramping, Vomiting, Nausea, Fatigue, Chills, Low-grade fever, Loss of appetite, Muscle aches, Headache. […] Dehydration is the most common complication of viral gastroenteritis. […] Stomach flu symptoms are typically short in duration, but you can be contagious before and after symptoms appear depending on what type of virus you have (norovirus or rotavirus). […] In most cases of stomach flu, symptoms typically come on quickly and severely, letting you know immediately that something is wrong. […] For both norovirus and rotavirus, symptoms typically peak in the first day or two after they begin, and tend to be gone by the third day. […] Though it can feel endless, the worst part of the stomach flu rarely lasts longer than one to three days. […] However, symptoms can sometimes last for up to 10 days, and it can take a few weeks for your bowel habits to return to normal.

• #39 Norovirus (Stomach Flu) Cases Are Surging: 3 Things to Know > News > Yale Medicine

  https://www.yalemedicine.org/news/norovirus-stomach-flu-cases-are-surging-3-things-to-know

  Young children, older adults, and/or those who are immunocompromised face a higher risk for complications than others. Each year, there are 900 norovirus-related deaths, mostly among adults ages 65 years and older. The biggest complication is dehydration, and anyone experiencing severe dehydration with symptoms including light-headedness, confusion, and passing out should seek medical care right away. […] It can take young children, older adults, and people who are infected when they were already sick with something else longer than usual to recover from norovirus. But most people get better within one to three days.

• #40 Gastroenteritis (Stomach Flu): Symptoms, Causes, Treatments

  https://www.webmd.com/digestive-disorders/gastroenteritis

  Gastroenteritis symptoms often start with little warning. You’ll usually get nausea, cramps, diarrhea, and vomiting. Expect to make several trips to the toilet in rapid succession. Other symptoms tend to develop a little later on and include: […] Because of diarrhea and vomiting, you also can become dehydrated. Watch for signs of dehydration, such as dry skin, a dry mouth, feeling lightheaded, and being really thirsty. Call your doctor if you have any of these symptoms. […] Gastroenteritis is not contagious, but the infections that cause it are. For example, viruses are usually spread through bodily fluids, such as spit, and poop. […] Most cases of viral gastroenteritis will be over in a few days, but you may be sick for up to 2 weeks with some viruses, such as adenovirus. […] Gastroenteritis is inflammation from an infection in your stomach and intestines. It can cause nausea, diarrhea, and vomiting, which may cause dehydration. How long your symptoms last depends on what’s causing your infection. Most people’s immune systems will clear the infection in a few days.

• #41 Stomach flu: gastroenteritis symptoms, causes, treatment, & more | Top Doctors

  https://www.topdoctors.co.uk/medical-dictionary/stomach-flu

  Gastroenteritis, sometimes known as stomach flu, is an infection which causes inflammation of the intestines. This can lead to diarrhoea, dehydration, nausea, and vomiting. […] The main symptoms of gastroenteritis are diarrhoea and vomiting. If you do not ingest enough fluids to replace those lost due to the vomiting and diarrhoea, you may also begin to suffer from dehydration. […] Other possible symptoms of gastroenteritis include abdominal pain, headache, mild fever, cramps in arms or legs, nausea, headache. […] These symptoms tend to last for just a few days, and vomiting should last no longer than one day. Signs you are dehydrated should also be monitored. These include having dry skin or a dry mouth, and feeling very thirsty. […] Gastroenteritis symptoms usually last for just a couple of days, although you may be contagious for longer. In some cases, symptoms could last for up to two weeks. […] Gastroenteritis is very seldom fatal. If your symptoms do not subside after a couple of days, you notice blood in your vomit or stool or you are suffering from a high fever, you should seek medical assistance.

• #42 How Long Does Stomach Flu Last: Stages & Duration – K Health

  https://khealth.com/learn/cold-and-flu/how-long-does-stomach-flu-last/

  This intestinal infection can cause pain and cramping in your stomach, nausea, vomiting, fever, and diarrhea. […] Common symptoms of the stomach flu include: Diarrhea (typically watery), Abdominal pain and/or cramping, Vomiting, Nausea, Fatigue, Chills, Low-grade fever, Loss of appetite, Muscle aches, Headache. […] Dehydration is the most common complication of viral gastroenteritis. […] Stomach flu symptoms are typically short in duration, but you can be contagious before and after symptoms appear depending on what type of virus you have (norovirus or rotavirus). […] In most cases of stomach flu, symptoms typically come on quickly and severely, letting you know immediately that something is wrong. […] For both norovirus and rotavirus, symptoms typically peak in the first day or two after they begin, and tend to be gone by the third day. […] Though it can feel endless, the worst part of the stomach flu rarely lasts longer than one to three days. […] However, symptoms can sometimes last for up to 10 days, and it can take a few weeks for your bowel habits to return to normal.

• #43 Is It Food Poisoning or 2025 Stomach Flu? A GI Doctor Explains | Ochsner Health

  https://blog.ochsner.org/articles/is-it-food-poisoning-or-the-stomach-flu

  The stomach flu, or viral gastroenteritis, is an infection of the stomach and intestines caused by various viruses, such as norovirus or rotavirus. It spreads through contaminated food, water or contact with infected people. Despite the name, it is not related to the influenza virus. […] Symptoms usually begin 24 to 48 hours after exposure and may include watery diarrhea, nausea, stomach cramps and low-grade fever. While uncomfortable, most cases resolve within a few days without medical intervention. […] Stomach flu symptoms usually develop 24 to 48 hours after exposure and last one to three days. Common symptoms include: watery diarrhea, stomach pain, nausea or vomiting, muscle aches, low-grade fever. […] If symptoms are severe, persistent, or accompanied by dehydration, bloody stools or high fever, medical care is essential.

• #44 Stomach Flu (Viral Gastroenteritis): How Long It Lasts

  https://www.health.com/condition/digestive-health/how-long-does-stomach-flu-last-an-expert-weighs-in

  Staying hydrated is essential if you have viral gastroenteritis. Dehydration happens if you lose too many fluids from diarrhea, fever, and vomiting. […] There’s a good chance your symptoms will go away rather quickly if you have a healthy immune system. […] The timeline for viral gastroenteritis symptoms depends on what virus causes your symptoms: Astrovirus typically resolves within two to three days, Enteric adenoviruses can take up to two weeks to resolve, Norovirus generally clears up within a couple of days, Rotavirus can last anywhere from three to eight days, Sapovirus usually lasts a few days. […] You may need more time to recover if you have a weak immune system. A weak immune system may have a harder time fighting a stomach virus than usual. Stomach flu symptoms may last longer than average, and you might have a high risk for complications. […] You will likely recover within a couple of days if you have a stomach bug.

• #45 How long may someone’s stomach hurt after having stomach flu?

  https://www.medicalnewstoday.com/articles/stomach-still-hurts-after-stomach-flu

  Stomach pain and cramps are common symptoms of viral gastroenteritis, or stomach flu. Symptoms typically last around 13 days but may persist longer, depending on the cause. […] Stomach flu symptoms, which may include abdominal pain and stomach cramps, typically begin suddenly and last for approximately 13 days. […] A person with stomach flu may experience symptoms such as: nausea, vomiting, watery diarrhea, abdominal pain and cramping, fever, in some cases. […] Stomach flu, or viral gastroenteritis, may cause abdominal pain and cramps. These symptoms are common, and most people find that symptoms resolve with bed rest and lots of fluids within a few days to a week, depending on which virus caused the infection.

• #46 Symptoms & Causes of Viral Gastroenteritis (“Stomach Flu”) – NIDDK

  https://www.niddk.nih.gov/health-information/digestive-diseases/viral-gastroenteritis/symptoms-causes

  If an infant or child has signs or symptoms of viral gastroenteritis, don’t hesitate to call a doctor for advice. Diarrhea is especially dangerous in newborns and infants, leading to severe dehydration in just a day or two. […] A child with symptoms of dehydration can die within a day if left untreated. […] You should also seek a doctor’s help right away if a child has signs or symptoms of viral gastroenteritis and the child is an infant, was born prematurely, or has a history of other medical conditions.

• #47 How long does stomach flu last? Timeline and recovery

  https://www.medicalnewstoday.com/articles/how-long-does-stomach-flu-last

  The symptoms can take 3-8 days to clear. […] Adenovirus can also live for up to 30 days on hard surfaces. […] Rotavirus and adenovirus are both common causes of stomach flu in young children. Rotavirus can last for about 3-8 days, and adenovirus can last for about 5-7 days. […] Viruses responsible for the stomach flu remain contagious even after the infection passes. […] After a person’s symptoms go away, the virus might still be contagious for several days. […] Stomach flu does not last very long in children or adults. […] It typically clears up within 2-8 days, depending on the virus that causes it. […] There are no formal treatments, but rest, fluids, and easy-to-digest foods can help ease the symptoms.

• #48 Symptoms & Causes of Viral Gastroenteritis (“Stomach Flu”) – NIDDK

  https://www.niddk.nih.gov/health-information/digestive-diseases/viral-gastroenteritis/symptoms-causes

  If an infant or child has signs or symptoms of viral gastroenteritis, don’t hesitate to call a doctor for advice. Diarrhea is especially dangerous in newborns and infants, leading to severe dehydration in just a day or two. […] A child with symptoms of dehydration can die within a day if left untreated. […] You should also seek a doctor’s help right away if a child has signs or symptoms of viral gastroenteritis and the child is an infant, was born prematurely, or has a history of other medical conditions.

• #49 Reddit – The heart of the internet

  https://www.reddit.com/r/bayarea/comments/18aaapz/stomach_virus_anyone_miserable_4_days/

  ETA: 1. This isnt the typical 48 hour bug. Folks are continuously nauseous and have GI pain/issues for a full week. […] At 4 days and it’s leveled off finally to intermittent cramps, nausea, bloating and hot trots. Nausea is the worst. It needs to end now. Reading around that this one is good for about a week of misery.

• #50 Stomach Flu (Viral Gastroenteritis): How Long It Lasts

  https://www.health.com/condition/digestive-health/how-long-does-stomach-flu-last-an-expert-weighs-in

  Staying hydrated is essential if you have viral gastroenteritis. Dehydration happens if you lose too many fluids from diarrhea, fever, and vomiting. […] There’s a good chance your symptoms will go away rather quickly if you have a healthy immune system. […] The timeline for viral gastroenteritis symptoms depends on what virus causes your symptoms: Astrovirus typically resolves within two to three days, Enteric adenoviruses can take up to two weeks to resolve, Norovirus generally clears up within a couple of days, Rotavirus can last anywhere from three to eight days, Sapovirus usually lasts a few days. […] You may need more time to recover if you have a weak immune system. A weak immune system may have a harder time fighting a stomach virus than usual. Stomach flu symptoms may last longer than average, and you might have a high risk for complications. […] You will likely recover within a couple of days if you have a stomach bug.

• #51 Symptoms & Causes of Viral Gastroenteritis (“Stomach Flu”) – NIDDK

  https://www.niddk.nih.gov/health-information/digestive-diseases/viral-gastroenteritis/symptoms-causes

  The symptoms of viral gastroenteritis include watery diarrhea, pain or cramping in your abdomen, nausea or vomiting, and sometimes fever. […] Symptoms of dehydration, the most common complication of viral gastroenteritis, may include extreme thirst and dry mouth, urinating less than usual, feeling tired, dark-colored urine, decreased skin turgor, sunken eyes or cheeks, and light-headedness or fainting. […] The symptoms listed below may suggest that an adult or child has a severe case of viral gastroenteritis, dehydration, or a more serious health problem instead of viral gastroenteritis. […] Adults with any of the following symptoms should see a doctor right away: change in mental state, such as irritability or lack of energy, diarrhea lasting more than 2 days, high fever, vomiting often, six or more loose stools in a day, severe pain in the abdomen or rectum, stools that are black and tarry or contain blood or pus, and symptoms of dehydration.

• #52 How Long Does Stomach Flu Last: Stages & Duration – K Health

  https://khealth.com/learn/cold-and-flu/how-long-does-stomach-flu-last/

  This intestinal infection can cause pain and cramping in your stomach, nausea, vomiting, fever, and diarrhea. […] Common symptoms of the stomach flu include: Diarrhea (typically watery), Abdominal pain and/or cramping, Vomiting, Nausea, Fatigue, Chills, Low-grade fever, Loss of appetite, Muscle aches, Headache. […] Dehydration is the most common complication of viral gastroenteritis. […] Stomach flu symptoms are typically short in duration, but you can be contagious before and after symptoms appear depending on what type of virus you have (norovirus or rotavirus). […] In most cases of stomach flu, symptoms typically come on quickly and severely, letting you know immediately that something is wrong. […] For both norovirus and rotavirus, symptoms typically peak in the first day or two after they begin, and tend to be gone by the third day. […] Though it can feel endless, the worst part of the stomach flu rarely lasts longer than one to three days. […] However, symptoms can sometimes last for up to 10 days, and it can take a few weeks for your bowel habits to return to normal.

• #53 Symptoms & Causes of Viral Gastroenteritis (“Stomach Flu”) – NIDDK

  https://www.niddk.nih.gov/health-information/digestive-diseases/viral-gastroenteritis/symptoms-causes

  The symptoms of viral gastroenteritis include watery diarrhea, pain or cramping in your abdomen, nausea or vomiting, and sometimes fever. […] Symptoms of dehydration, the most common complication of viral gastroenteritis, may include extreme thirst and dry mouth, urinating less than usual, feeling tired, dark-colored urine, decreased skin turgor, sunken eyes or cheeks, and light-headedness or fainting. […] The symptoms listed below may suggest that an adult or child has a severe case of viral gastroenteritis, dehydration, or a more serious health problem instead of viral gastroenteritis. […] Adults with any of the following symptoms should see a doctor right away: change in mental state, such as irritability or lack of energy, diarrhea lasting more than 2 days, high fever, vomiting often, six or more loose stools in a day, severe pain in the abdomen or rectum, stools that are black and tarry or contain blood or pus, and symptoms of dehydration.

• #54 Influenza or Stomach Flu (Gastroenteritis)?

  https://www.webmd.com/cold-and-flu/stomach-flu-not-influenza

  Sometimes people mistake symptoms of stomach flu, or gastroenteritis, for the viral infection we commonly call „flu.” But theyre not the same. […] Stomach flu happens when your stomach and intestines (also called the gastrointestinal or GI tract) are inflamed and irritated. […] They can include: Cramps in your belly or sides, Stomach pain, Nausea, Vomiting, Diarrhea, Fever. […] In severe cases, days of throwing up and having diarrhea (or both) can cause your body to lose a lot of fluid. If you lose too much, you may need medical attention. Sometimes it can be life threatening. Signs to watch for include: Sunken eyes, Lightheadedness, Being more thirsty, Dry or sticky mouth, Lack of normal elasticity of the skin, Peeing less, Fewer tears. […] If you have symptoms of stomach flu and are weak and dizzy, you may be dehydrated. Call your doctor if you have these symptoms: Blood in your vomit or poop, Dehydration — you cant pee, or theres very little when you do go, youre very thirsty, cant make tears, and your mouth is always dry, Fever of 100.4 degrees F or higher in an infant or 102.2 degrees F or higher in an older child or adult, Swollen tummy or pain in the right lower part of the belly, Vomiting that lasts more than 48 hours. […] If you cant keep fluids down and youre losing them from fever, vomiting, and diarrhea, get emergency medical help.

• #55 Have the Stomach Flu? 4 Ways to Treat Symptoms at Home

  https://www.unitypoint.org/news-and-articles/have-the-stomach-flu-4-ways-to-treat-symptoms-at-home

  Stomach flu symptoms include stomach pain, nausea, vomiting and diarrhea, Miller says. A low-grade fever, chills and muscle aches aren’t uncommon to experience as well. Symptoms can start as little as 12 hours after exposure. These symptoms can last anywhere from one to 14 days, and unfortunately, the stomach flu is extremely contagious. […] Stomach flu primary symptoms can include stomach pain, nausea, vomiting and diarrhea. Stomach flu symptoms can appear in as little as 12 hours after exposure and last 1-14 days. […] If you experience nausea, vomiting and/or diarrhea, keep an eye out for other symptoms that may follow. If you notice a progression in the illness, talk with your doctor about getting tested for COVID-19. […] While most stomach illnesses pass on their own, there are cases when medical attention is necessary. Miller recommends watching for signs of severe dehydration: Increased thirst, Dry mouth, Headache, Confusion, Increased heart rate over 100 beats per minute, Increased breathing rate, Dizziness, including when standing from a sitting or laying position, Passing out, Fatigue, Dark yellow or amber colored urine, No urination within the past six to eight hours (during the day).

• #56 Stomach Flu Symptoms and Treatment | Austin Gastroenterology

  https://www.austingastro.com/patient-education/viral-gastroenteritis/

  Symptoms of dehydration include: Fatigue, Thirst, Urinating less than usual (in infants, no wet diapers for 3 hours or more), Dark-colored urine, Dry mouth, Lack of skin turgor, meaning that when your skin is pinched and released, it does not return to its normal position right away, Sunken eyes or cheeks (or soft spot in the skull of infants), Light-headedness or fainting in adults, Behavior changes and confusion in older adults, No tears when crying for infants and young children.

• #57 Gastroenteritis (Stomach Flu) (for Parents) | Nemours KidsHealth

  https://kidshealth.org/en/parents/gastroenteritis.html

  Gastroenteritis, often called the stomach flu, is a common illness that causes nausea, vomiting, diarrhea, and belly cramps. It usually lasts a few days and isn’t serious. Most kids get better at home by resting and drinking plenty of liquids. […] The most common signs of gastroenteritis are vomiting and diarrhea. Many children also have a fever. […] When kids have diarrhea or vomiting, they lose lots of fluid in their poop or vomit. This can lead to dehydration (not having enough water in the body). If that happens, the body can have trouble working as it should. […] Call the doctor if your child: can’t drink for several hours, is peeing less often (more than 4-6 hours for babies and 6-8 hours for older children), has signs of dehydration, such as crying with few or no tears, having a dry mouth or cracked lips, feeling dizzy or lightheaded, acting very sleepy or less alert, has a high fever, has blood in their poop or vomit, is vomiting for more than 24 hours or the diarrhea doesn’t get better after several days.

• #58 What to Know About Rotavirus and Stomach Flu

  https://www.parents.com/health/cold-flu/flu/rotavirus-stomach-flu/

  „A sunken soft spot on top of the baby’s head” […] „Few or no tears while crying” […] „Acting unusually sleepy, sluggish, or unresponsive” […] „Wrinkled skin” […] „Dry mouth or cracked lips” […] „Dizziness, headaches, or muscle pain in older kids” […] „Urine that’s dark yellow (instead of light yellow or clear)” […] „Sunken eyes” […] „Weight loss” […] […] […] „If a child of any age seems severely dehydrated, it is a medical emergency.” […] „Call a health care provider or head to the hospital.” […] „Your child may need to get rehydrated through IV fluids.”

• #59 About Norovirus | Norovirus | CDC

  https://www.cdc.gov/norovirus/about/index.html

  Norovirus is a very contagious virus that causes vomiting and diarrhea. […] It is sometimes called the „stomach flu” or the „stomach bug.” However, norovirus illness is not related to the flu. The flu is caused by the influenza virus. Norovirus causes acute gastroenteritis, an inflammation of the stomach or intestines. […] A person usually develops symptoms 12 to 48 hours after being exposed to norovirus. […] Most common symptoms: Diarrhea, vomiting, nausea, stomach pain […] Other symptoms: Fever, headache, and body aches. […] If you have norovirus illness, you can feel extremely ill, and vomit or have diarrhea many times a day. This can lead to dehydration (loss of body fluids), especially in young children, older adults, and people with other illnesses. Symptoms of dehydration include: Decreased urination, Dry mouth and throat, Feeling dizzy when standing up, Crying with few or no tears, Unusual sleepiness or fussiness. […] Most people with norovirus illness get better within 1 to 3 days.

• #60 Symptoms & Causes of Viral Gastroenteritis (“Stomach Flu”) – NIDDK

  https://www.niddk.nih.gov/health-information/digestive-diseases/viral-gastroenteritis/symptoms-causes

  If an infant or child has signs or symptoms of viral gastroenteritis, don’t hesitate to call a doctor for advice. Diarrhea is especially dangerous in newborns and infants, leading to severe dehydration in just a day or two. […] A child with symptoms of dehydration can die within a day if left untreated. […] You should also seek a doctor’s help right away if a child has signs or symptoms of viral gastroenteritis and the child is an infant, was born prematurely, or has a history of other medical conditions.

• #61 Viral Gastroenteritis (Stomach Flu): Symptoms, Causes, Timeline & Treatment – Healthgrades

  https://resources.healthgrades.com/right-care/infections-and-contagious-diseases/viral-gastroenteritis-stomach-flu

  The most common viral gastroenteritis symptoms are: Nausea and vomiting, Diarrhea, Headache, Body aches, Fever or chills, Stomach pain. […] Severe dehydration is a medical emergency and can be fatal. If you or your child have signs of dehydration that don’t improve by drinking extra fluids, seek immediate medical attention. Signs of moderate to severe dehydration include: Dizziness, Confusion, Rapid heartbeat, Rapid breathing, Fainting. […] While viral gastroenteritis isn’t a life threatening illness, the symptoms of vomiting and diarrhea can cause dehydration, which can be serious in some cases. While it can often be prevented by sipping extra fluids, dehydration can get worse if lost fluids aren’t replaced. Moderate to severe dehydration can be fatal, and these conditions should be treated at a hospital.

• #62 Stomach Flu Virus Symptoms, Contagious, Treatment, Recovery

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

  Children with gastroenteritis or stomach flu usually have diarrhea, but may have other symptoms such as refusing to eat or drink or being very thirsty, either increased or low or no urine output, weight loss, lethargy, bloody diarrhea, and pinched skin that does not rapidly return to normal is a sign of dehydration and decreased fluid intake. […] The prognosis (outlook) for complete recovery is excellent in most people infected with viral and bacterial-caused gastroenteritis, as long as the person keeps well hydrated. […] Acute gastroenteritis (viral) lasts about seven to 14 days and is then usually self-cured. […] Most patients who get gastroenteritis have no complications and will completely recover. The major complication for some patients is dehydration; infants, children, the elderly, and immunosuppressed are at higher risk for this complication.

• #63 Viral Gastroenteritis – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK518995/

  Viral gastroenteritis is a widespread infectious illness caused by various viruses, including rotavirus, norovirus, adenovirus, and astrovirus, characterized by nausea, vomiting, diarrhea, abdominal pain, fever, and dehydration. […] Viral gastroenteritis is a known cause of nausea, vomiting, diarrhea, anorexia, weight loss, and dehydration. Isolated cases can occur, but viral gastroenteritis more commonly occurs in outbreaks within close communities, eg, daycare centers, nursing facilities, and cruise ships. […] Norovirus presents most commonly with abdominal cramps and nausea, followed by vomiting and diarrhea. Onset can be abrupt. Symptoms also include myalgias, malaise, and fevers up to 102.2 F (39 C). Diarrhea is non-bloody and can consist of multiple bowel movements per day. The illness is self-limiting, and most patients recover in 72 hours without sequelae. […] The prognosis of viral gastroenteritis in most cases is excellent and self-limited. However, continued maintenance of oral hydration is essential, even if a patient does not seek medical care. Mortality does occur at extremes of age and in immunosuppressed individuals.

• #64 Symptoms & Causes of Viral Gastroenteritis (“Stomach Flu”) – NIDDK

  https://www.niddk.nih.gov/health-information/digestive-diseases/viral-gastroenteritis/symptoms-causes

  The symptoms of viral gastroenteritis include watery diarrhea, pain or cramping in your abdomen, nausea or vomiting, and sometimes fever. […] Symptoms of dehydration, the most common complication of viral gastroenteritis, may include extreme thirst and dry mouth, urinating less than usual, feeling tired, dark-colored urine, decreased skin turgor, sunken eyes or cheeks, and light-headedness or fainting. […] The symptoms listed below may suggest that an adult or child has a severe case of viral gastroenteritis, dehydration, or a more serious health problem instead of viral gastroenteritis. […] Adults with any of the following symptoms should see a doctor right away: change in mental state, such as irritability or lack of energy, diarrhea lasting more than 2 days, high fever, vomiting often, six or more loose stools in a day, severe pain in the abdomen or rectum, stools that are black and tarry or contain blood or pus, and symptoms of dehydration.

• #65 Viral gastroenteritis (stomach flu) Information | Mount Sinai – New York

  https://www.mountsinai.org/health-library/diseases-conditions/viral-gastroenteritis-stomach-flu

  Viral gastroenteritis is an infection of the stomach and intestine caused by a virus. The infection can lead to diarrhea and vomiting. It is sometimes called the „stomach flu.” […] Symptoms most often appear within 4 to 48 hours after contact with the virus. Common symptoms include: Abdominal pain, Diarrhea, Nausea and vomiting. […] Other symptoms may include: Chills, clammy skin, or sweating, Fever, Joint stiffness or muscle pain, Poor feeding, Weight loss. […] For most people, the illness goes away in a few days without treatment. […] Severe dehydration can occur in infants and young children. […] Contact your provider if diarrhea lasts for more than several days or if dehydration occurs. You should also contact your provider if you or your child has these symptoms: Blood in the stool, Confusion, Dizziness, Dry mouth, Feeling faint, Nausea, No tears when crying, No urine for 8 hours or more, Sunken appearance to the eyes, Sunken soft spot on an infant’s head (fontanelle).

• #66 Gastroenteritis | Stomach flu | MedlinePlus

  https://medlineplus.gov/gastroenteritis.html

  For adults, they include: Change in mental state, such as irritability or lack of energy, Diarrhea lasting more than 2 days, High fever, Vomiting often, Six or more loose stools in a day, Severe pain in the abdomen (belly) or rectum, Stools that are black and tarry or contain blood or pus, Symptoms of dehydration, such as thirst, dry mouth, headache, dark-colored urine, and urinating less than normal. […] For infants and children, they include: Change in the child’s mental state, such as irritability or lack of energy, Diarrhea lasting more than a day, Any fever in infants, High fever in older children, Frequent loose stools, Vomiting often, Severe pain in the abdomen (belly) or rectum, Signs or symptoms of dehydration, such as thirst, dry mouth, urinating less than usual or no wet diapers for 3 hours or more, and no tears when crying, Stools that are black and tarry or contain blood or pus.

• #67 Signs and Symptoms of Stomach Flu: Acton Urgent Care: Urgent Care

  https://www.actonuc.com/blog/signs-and-symptoms-of-stomach-flu

  Viral gastroenteritis, commonly known as the stomach flu, is an intestinal infection with some seriously miserable symptoms think nausea, stomach cramps, and frequent beelines to the bathroom. […] Viral Gastroenteritis symptoms include: […] Watery, nonbloody diarrhea* […] Abdominal cramps and pain […] Nausea, vomiting or both […] Occasional muscle aches or headache […] Low-grade fever. […] Symptoms of viral gastroenteritis come on abruptly, and fortunately, dont last long. The illness usually runs its course within 1-2 days. […] Dehydration as a result of diarrhea and vomiting can be a serious concern, so head into our urgent care center if: […] You experience vomiting that lasts more than two days […] Youre dehydrated signs of dehydration include excessive thirst, dry mouth, deep yellow urine or little or no urine, and severe weakness, dizziness or lightheadedness […] Youre vomiting blood […] You have a fever above 104 F (40 C).

• #68 Symptoms & Causes of Viral Gastroenteritis (“Stomach Flu”) – NIDDK

  https://www.niddk.nih.gov/health-information/digestive-diseases/viral-gastroenteritis/symptoms-causes

  If an infant or child has signs or symptoms of viral gastroenteritis, don’t hesitate to call a doctor for advice. Diarrhea is especially dangerous in newborns and infants, leading to severe dehydration in just a day or two. […] A child with symptoms of dehydration can die within a day if left untreated. […] You should also seek a doctor’s help right away if a child has signs or symptoms of viral gastroenteritis and the child is an infant, was born prematurely, or has a history of other medical conditions.

• #69 Gastroenteritis (Stomach Flu) (for Parents) | Nemours KidsHealth

  https://kidshealth.org/en/parents/gastroenteritis.html

  Gastroenteritis, often called the stomach flu, is a common illness that causes nausea, vomiting, diarrhea, and belly cramps. It usually lasts a few days and isn’t serious. Most kids get better at home by resting and drinking plenty of liquids. […] The most common signs of gastroenteritis are vomiting and diarrhea. Many children also have a fever. […] When kids have diarrhea or vomiting, they lose lots of fluid in their poop or vomit. This can lead to dehydration (not having enough water in the body). If that happens, the body can have trouble working as it should. […] Call the doctor if your child: can’t drink for several hours, is peeing less often (more than 4-6 hours for babies and 6-8 hours for older children), has signs of dehydration, such as crying with few or no tears, having a dry mouth or cracked lips, feeling dizzy or lightheaded, acting very sleepy or less alert, has a high fever, has blood in their poop or vomit, is vomiting for more than 24 hours or the diarrhea doesn’t get better after several days.

• #70 What to Know About Rotavirus and Stomach Flu

  https://www.parents.com/health/cold-flu/flu/rotavirus-stomach-flu/

  […] […] „Viral stomach flu is highly contagious.” […] „Playing with an infected child is the main way the virus spreads since germs can live on toys and clothes for hours or even days.” […] […] […] „Call the doctor immediately if it’s your baby’s first bout with stomach flu.” […] „This way, they can rule out bacterial infections, which may require antibiotic treatment.” […] „Signs that warrant a call to a health care provider include:” […] „Severe diarrhea” […] „Diarrhea that persists for more than a couple of days” […] „Diarrhea that contains any blood” […] „Persistent fever” […] „Significant abdominal pain” […] „Vomiting without diarrhea (a stomach virus nearly always has both)” […] „Tenderness when you touch your child’s tummy” […] „Fever over 100.4 F in an infant under 3 months”

• #71 Symptoms & Causes of Viral Gastroenteritis (“Stomach Flu”) – NIDDK

  https://www.niddk.nih.gov/health-information/digestive-diseases/viral-gastroenteritis/symptoms-causes

  If an infant or child has signs or symptoms of viral gastroenteritis, don’t hesitate to call a doctor for advice. Diarrhea is especially dangerous in newborns and infants, leading to severe dehydration in just a day or two. […] A child with symptoms of dehydration can die within a day if left untreated. […] You should also seek a doctor’s help right away if a child has signs or symptoms of viral gastroenteritis and the child is an infant, was born prematurely, or has a history of other medical conditions.

• #72 Norovirus is on the rise. How is it different? | News

  https://news.llu.edu/health-wellness/norovirus-rise-how-it-different

  Norovirus is a viral infection that causes inflammation of the stomach and intestines, leading to symptoms such as: Nausea, Vomiting, Diarrhea, Stomach pain, Fever and body aches. […] Symptoms typically develop 12 to 48 hours after exposure and can last for one to three days. While most people recover without complications, dehydration can be a concern, especially for young children, older adults, and individuals with weakened immune systems. […] Individuals should seek care if they experience: Severe dehydration (dry mouth, dizziness, decreased urination), Persistent vomiting or diarrhea lasting more than a few days, Fever over 103F that does not respond to medication.

• #73 Norovirus (Stomach Flu) Cases Are Surging: 3 Things to Know > News > Yale Medicine

  https://www.yalemedicine.org/news/norovirus-stomach-flu-cases-are-surging-3-things-to-know

  Young children, older adults, and/or those who are immunocompromised face a higher risk for complications than others. Each year, there are 900 norovirus-related deaths, mostly among adults ages 65 years and older. The biggest complication is dehydration, and anyone experiencing severe dehydration with symptoms including light-headedness, confusion, and passing out should seek medical care right away. […] It can take young children, older adults, and people who are infected when they were already sick with something else longer than usual to recover from norovirus. But most people get better within one to three days.

• #74 What You Should Know About Norovirus

  https://prod.emoryhealthcare.org/stories/wellness/what-you-should-know-about-norovirus

  What people sometimes call the stomach flu isnt really influenza its usually a syndrome called viral gastroenteritis caused by other viruses. The most common of these viruses in adults is called norovirus, and its highly contagious. […] Norovirus symptoms may include: Cramps or aching belly, Diarrhea, Nausea/Vomiting. […] The good news about norovirus is that it usually runs its course in a day or two. But while youre suffering, its important to stay hydrated. Replace the minerals lost through diarrhea and vomiting by drinking fluids that contain electrolytes just steer clear of sports drinks that have a lot of sugar and salt. […] If you or someone in your family has symptoms for more than three days, visit your primary care physician (PCP). Other reasons to see your PCP include: Bloody stool or vomit, Lack of urine or dark urine, which may mean dehydration, Oral temperature of over 101.5F. […] Its time for the ER if you or someone in your care is suffering with: A temperature over 102F for more than 2 days that doesnt respond to medicine, Severe dehydration (symptoms include dark urine or lack of urine), Dizziness or lightheadedness on standing.

• #75 Viral Gastroenteritis (Stomach Flu): Symptoms, Causes, Timeline & Treatment – Healthgrades

  https://resources.healthgrades.com/right-care/infections-and-contagious-diseases/viral-gastroenteritis-stomach-flu

  The most common viral gastroenteritis symptoms are: Nausea and vomiting, Diarrhea, Headache, Body aches, Fever or chills, Stomach pain. […] Severe dehydration is a medical emergency and can be fatal. If you or your child have signs of dehydration that don’t improve by drinking extra fluids, seek immediate medical attention. Signs of moderate to severe dehydration include: Dizziness, Confusion, Rapid heartbeat, Rapid breathing, Fainting. […] While viral gastroenteritis isn’t a life threatening illness, the symptoms of vomiting and diarrhea can cause dehydration, which can be serious in some cases. While it can often be prevented by sipping extra fluids, dehydration can get worse if lost fluids aren’t replaced. Moderate to severe dehydration can be fatal, and these conditions should be treated at a hospital.

• #76 Symptoms & Causes of Viral Gastroenteritis (“Stomach Flu”) – NIDDK

  https://www.niddk.nih.gov/health-information/digestive-diseases/viral-gastroenteritis/symptoms-causes

  If an infant or child has signs or symptoms of viral gastroenteritis, don’t hesitate to call a doctor for advice. Diarrhea is especially dangerous in newborns and infants, leading to severe dehydration in just a day or two. […] A child with symptoms of dehydration can die within a day if left untreated. […] You should also seek a doctor’s help right away if a child has signs or symptoms of viral gastroenteritis and the child is an infant, was born prematurely, or has a history of other medical conditions.

• #77 Stomach Flu: Symptoms, Causes & Treatment

  https://my.clevelandclinic.org/health/diseases/12418-stomach-flu

  Stomach flu usually only lasts a few days, but it may last up to a week or two in severe cases. […] Yes, its very contagious. You should limit your contact with others when you have it. […] Youre most contagious during the acute phase of the infection (when you have symptoms) and for a few days after. However, you may still be a little contagious for up to two weeks after recovering. […] For most people, symptoms get better in a few days. Contact a healthcare provider if they arent improving. […] Its best to say isolated until two days after your symptoms have stopped. This is the time when youre most contagious.

• #78 Stages of the Stomach Flu: What to Know

  https://www.healthline.com/health/stomach-flu-stages

  The stomach flu is clinically known as viral or infectious gastroenteritis. […] Norovirus is the most common cause of the stomach flu, but other viruses, including rotavirus, adenovirus, and astrovirus, may also lead to symptoms. […] Once the incubation period is over, common first symptoms include nausea, vomiting, and non-bloody loose or watery diarrhea. Other symptoms may include fever, abdominal pain, and cramping. The acute stage usually lasts 1 to 3 days. […] Viral gastroenteritis is highly contagious during the acute symptoms stage. […] The stages of the stomach flu may vary in intensity and duration depending on factors like your overall health status, ongoing hydration efforts, and the virus that caused the symptoms. […] In general, you should start feeling better within a few days of experiencing the first symptoms. If you don’t, consider contacting a medical professional for an assessment. In children, medical care is often required if severe diarrhea and vomiting last for more than 2 days or worsen over time.

• #79 Stomach flu: How long am I contagious?

  https://www.mayoclinic.org/diseases-conditions/viral-gastroenteritis/expert-answers/stomach-flu/faq-20057899

  You can pass stomach flu, also known as gastroenteritis, to others from a few days up to two weeks or more. The time depends on which virus is causing your illness. […] Norovirus is the most common cause of viral gastroenteritis. With norovirus, you can be contagious before you feel ill. Symptoms usually appear within 1 to 2 days being exposed to the virus. […] Most people with norovirus feel better a day or two after their symptoms begin. But they’re contagious for a few days after they recover. The virus can stay in the stool for two weeks or more after recovery. […] Symptoms of rotavirus usually appear 1 to 3 days after a person is in contact with the virus and last 3 to 8 days. […] But people with rotavirus are contagious even before they develop symptoms. They’re still contagious up to two weeks after they’ve recovered.

• #80 Stomach flu: How long am I contagious? – Hancock Health

  https://www.hancockhealth.org/mayo-health-library/stomach-flu-how-long-am-i-contagious/

  Norovirus is the most common cause of viral gastroenteritis. With norovirus, you can be contagious before you feel ill. Symptoms usually appear within 1 to 2 days being exposed to the virus. […] Most people with norovirus feel better a day or two after their symptoms begin. But they’re contagious for a few days after they recover. The virus can stay in the stool for two weeks or more after recovery. […] Symptoms of rotavirus usually appear 1 to 3 days after a person is in contact with the virus and last 3 to 8 days. […] But people with rotavirus are contagious even before they develop symptoms. They’re still contagious up to two weeks after they’ve recovered.

• #81 Stomach Flu: Symptoms, Causes & Treatment

  https://my.clevelandclinic.org/health/diseases/12418-stomach-flu

  Stomach flu usually only lasts a few days, but it may last up to a week or two in severe cases. […] Yes, its very contagious. You should limit your contact with others when you have it. […] Youre most contagious during the acute phase of the infection (when you have symptoms) and for a few days after. However, you may still be a little contagious for up to two weeks after recovering. […] For most people, symptoms get better in a few days. Contact a healthcare provider if they arent improving. […] Its best to say isolated until two days after your symptoms have stopped. This is the time when youre most contagious.

• #82 Norovirus | Mass.gov

  https://www.mass.gov/info-details/norovirus

  Norovirus is a very contagious virus that causes acute gastroenteritis with vomiting and diarrhea. Gastroenteritis is inflammation of the stomach and intestines. While it is sometimes called the “stomach flu” or “stomach bug,” norovirus is not related to the flu, which is caused by the influenza virus. […] Common symptoms of norovirus infection come on suddenly and include vomiting, diarrhea, nausea, and abdominal cramps. People with norovirus can also experience fever, headache, and muscle aches. Symptoms usually begin 12 to 48 hours after exposure to the virus and last about 1 to 3 days in most people, with no long-term effects. […] People with norovirus infection are most contagious when they have symptoms, especially vomiting, and during the first few days after feeling better. Studies have shown that you can still spread norovirus for two weeks or more after you feel better. Sometimes people infected with norovirus have no symptoms but can still pass the virus to others.

• #83

• #84 Gastroenteritis (Stomach Flu): Symptoms, Causes, Treatments

  https://www.webmd.com/digestive-disorders/gastroenteritis

  Gastroenteritis symptoms often start with little warning. You’ll usually get nausea, cramps, diarrhea, and vomiting. Expect to make several trips to the toilet in rapid succession. Other symptoms tend to develop a little later on and include: […] Because of diarrhea and vomiting, you also can become dehydrated. Watch for signs of dehydration, such as dry skin, a dry mouth, feeling lightheaded, and being really thirsty. Call your doctor if you have any of these symptoms. […] Gastroenteritis is not contagious, but the infections that cause it are. For example, viruses are usually spread through bodily fluids, such as spit, and poop. […] Most cases of viral gastroenteritis will be over in a few days, but you may be sick for up to 2 weeks with some viruses, such as adenovirus. […] Gastroenteritis is inflammation from an infection in your stomach and intestines. It can cause nausea, diarrhea, and vomiting, which may cause dehydration. How long your symptoms last depends on what’s causing your infection. Most people’s immune systems will clear the infection in a few days.

• #85 The Difference: Stomach Flu vs. Food Poisoning | Banner Health

  https://www.bannerhealth.com/healthcareblog/teach-me/stomach-flu-or-food-poisoning-how-to-tell-the-difference

  Stomach flu is mainly caused by viruses like norovirus, rotavirus or adenovirus, though bacteria can also cause it. These germs spread through contaminated food, water, surfaces or close contact with someone who is sick. Stomach flu is especially common in crowded places like schools and daycare centers. […] Viral gastroenteritis is usually spread through the fecal-oral route, such as unwashed hands after using the bathroom or changing a baby’s diaper, Dr. Hinz said. Certain viruses like norovirus can also be inhaled in the air from nearby vomit (throw up). […] While nausea, vomiting, diarrhea and stomach cramping are common with both conditions, the stomach flu may also include symptoms like fever, chills and body aches. […] Most cases of stomach flu and food poisoning can be managed at home with rest and hydration.

• #86 Norovirus (Stomach Flu) Cases Are Surging: 3 Things to Know > News > Yale Medicine

  https://www.yalemedicine.org/news/norovirus-stomach-flu-cases-are-surging-3-things-to-know

  Norovirus, the most common cause of viral stomach flu, is on the rise in the United States. Norovirus infections cause acute gastroenteritis—a stomach bug with cramps, diarrhea, vomiting, and other symptoms. […] The symptoms most commonly include abdominal cramps, diarrhea, nausea, and vomiting, but it can also cause body aches, chills, fever, headaches, and tiredness. […] A person who has been sick with norovirus sheds billions of virus particles in their stool or vomit. And it only takes an exposure of as few as 10 particles for an individual to develop an infection. […] People develop symptoms within 12 to 48 hours of exposure to norovirus. Fatigue is common, so rest is important. Diarrhea and vomiting cause the body to lose fluids, so you’ll need to hydrate—in addition to water, try ice chips, fruit juice with water, broth, and low-calorie sports drinks.

• #87 Gastroenteritis | Better Health ChannelExternal LinkExternal LinkExternal LinkExternal LinkExternal LinkExternal LinkExternal Link

  https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/gastroenteritis

  Gastroenteritis is a short-term illness triggered by the infection and inflammation of the digestive system. Symptoms can include abdominal cramps, diarrhoea and vomiting. […] Typical symptoms include abdominal cramps, diarrhoea and vomiting. […] The symptoms of gastroenteritis can include: loss of appetite, bloating, nausea, vomiting, abdominal cramps, abdominal pain, diarrhoea, bloody stools (poo) – in some cases, pus in the stools – in some cases, generally feeling unwell – including lethargy and body aches. […] Gastroenteritis is highly contagious, general suggestions on how to reduce the risk of infection include: Stay home while sick, until 48 hours after symptoms have stopped. If symptoms persist, visit your GP.

• #88 Viral gastroenteritis (stomach flu) – Symptoms & causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/viral-gastroenteritis/symptoms-causes/syc-20378847

  Viral gastroenteritis is an intestinal infection that includes signs and symptoms such as watery diarrhea, stomach cramps, nausea or vomiting, and sometimes fever. […] The flu (influenza) affects only your respiratory system — your nose, throat and lungs. Gastroenteritis, on the other hand, attacks your intestines, causing signs and symptoms such as: Watery, usually nonbloody diarrhea — bloody diarrhea usually means you have a different, more severe infection; Nausea, vomiting or both; Stomach cramps and pain; Occasional muscle aches or headache; Low-grade fever. […] Depending on the cause, viral gastroenteritis symptoms may appear within 1-3 days after you’re infected and can range from mild to severe. Symptoms usually last just a day or two, but occasionally they may last up to 14 days.

• #89 Influenza or Stomach Flu (Gastroenteritis)?

  https://www.webmd.com/cold-and-flu/stomach-flu-not-influenza

  Sometimes people mistake symptoms of stomach flu, or gastroenteritis, for the viral infection we commonly call „flu.” But theyre not the same. […] Stomach flu happens when your stomach and intestines (also called the gastrointestinal or GI tract) are inflamed and irritated. […] They can include: Cramps in your belly or sides, Stomach pain, Nausea, Vomiting, Diarrhea, Fever. […] In severe cases, days of throwing up and having diarrhea (or both) can cause your body to lose a lot of fluid. If you lose too much, you may need medical attention. Sometimes it can be life threatening. Signs to watch for include: Sunken eyes, Lightheadedness, Being more thirsty, Dry or sticky mouth, Lack of normal elasticity of the skin, Peeing less, Fewer tears. […] If you have symptoms of stomach flu and are weak and dizzy, you may be dehydrated. Call your doctor if you have these symptoms: Blood in your vomit or poop, Dehydration — you cant pee, or theres very little when you do go, youre very thirsty, cant make tears, and your mouth is always dry, Fever of 100.4 degrees F or higher in an infant or 102.2 degrees F or higher in an older child or adult, Swollen tummy or pain in the right lower part of the belly, Vomiting that lasts more than 48 hours. […] If you cant keep fluids down and youre losing them from fever, vomiting, and diarrhea, get emergency medical help.

• #90 How Long Does Stomach Flu Last: Stages & Duration – K Health

  https://khealth.com/learn/cold-and-flu/how-long-does-stomach-flu-last/

  This intestinal infection can cause pain and cramping in your stomach, nausea, vomiting, fever, and diarrhea. […] Common symptoms of the stomach flu include: Diarrhea (typically watery), Abdominal pain and/or cramping, Vomiting, Nausea, Fatigue, Chills, Low-grade fever, Loss of appetite, Muscle aches, Headache. […] Dehydration is the most common complication of viral gastroenteritis. […] Stomach flu symptoms are typically short in duration, but you can be contagious before and after symptoms appear depending on what type of virus you have (norovirus or rotavirus). […] In most cases of stomach flu, symptoms typically come on quickly and severely, letting you know immediately that something is wrong. […] For both norovirus and rotavirus, symptoms typically peak in the first day or two after they begin, and tend to be gone by the third day. […] Though it can feel endless, the worst part of the stomach flu rarely lasts longer than one to three days. […] However, symptoms can sometimes last for up to 10 days, and it can take a few weeks for your bowel habits to return to normal.

• #91 Viral Gastroenteritis – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK518995/

  Viral gastroenteritis is a widespread infectious illness caused by various viruses, including rotavirus, norovirus, adenovirus, and astrovirus, characterized by nausea, vomiting, diarrhea, abdominal pain, fever, and dehydration. […] Viral gastroenteritis is a known cause of nausea, vomiting, diarrhea, anorexia, weight loss, and dehydration. Isolated cases can occur, but viral gastroenteritis more commonly occurs in outbreaks within close communities, eg, daycare centers, nursing facilities, and cruise ships. […] Norovirus presents most commonly with abdominal cramps and nausea, followed by vomiting and diarrhea. Onset can be abrupt. Symptoms also include myalgias, malaise, and fevers up to 102.2 F (39 C). Diarrhea is non-bloody and can consist of multiple bowel movements per day. The illness is self-limiting, and most patients recover in 72 hours without sequelae. […] The prognosis of viral gastroenteritis in most cases is excellent and self-limited. However, continued maintenance of oral hydration is essential, even if a patient does not seek medical care. Mortality does occur at extremes of age and in immunosuppressed individuals.

• #92 Symptoms & Causes of Viral Gastroenteritis (“Stomach Flu”) – NIDDK

  https://www.niddk.nih.gov/health-information/digestive-diseases/viral-gastroenteritis/symptoms-causes

  The symptoms of viral gastroenteritis include watery diarrhea, pain or cramping in your abdomen, nausea or vomiting, and sometimes fever. […] Symptoms of dehydration, the most common complication of viral gastroenteritis, may include extreme thirst and dry mouth, urinating less than usual, feeling tired, dark-colored urine, decreased skin turgor, sunken eyes or cheeks, and light-headedness or fainting. […] The symptoms listed below may suggest that an adult or child has a severe case of viral gastroenteritis, dehydration, or a more serious health problem instead of viral gastroenteritis. […] Adults with any of the following symptoms should see a doctor right away: change in mental state, such as irritability or lack of energy, diarrhea lasting more than 2 days, high fever, vomiting often, six or more loose stools in a day, severe pain in the abdomen or rectum, stools that are black and tarry or contain blood or pus, and symptoms of dehydration.

• #93 Symptoms & Causes of Viral Gastroenteritis (“Stomach Flu”) – NIDDK

  https://www.niddk.nih.gov/health-information/digestive-diseases/viral-gastroenteritis/symptoms-causes

  If an infant or child has signs or symptoms of viral gastroenteritis, don’t hesitate to call a doctor for advice. Diarrhea is especially dangerous in newborns and infants, leading to severe dehydration in just a day or two. […] A child with symptoms of dehydration can die within a day if left untreated. […] You should also seek a doctor’s help right away if a child has signs or symptoms of viral gastroenteritis and the child is an infant, was born prematurely, or has a history of other medical conditions.

• #94 Stomach Flu: Symptoms, Causes & Treatment

  https://my.clevelandclinic.org/health/diseases/12418-stomach-flu

  Stomach flu usually only lasts a few days, but it may last up to a week or two in severe cases. […] Yes, its very contagious. You should limit your contact with others when you have it. […] Youre most contagious during the acute phase of the infection (when you have symptoms) and for a few days after. However, you may still be a little contagious for up to two weeks after recovering. […] For most people, symptoms get better in a few days. Contact a healthcare provider if they arent improving. […] Its best to say isolated until two days after your symptoms have stopped. This is the time when youre most contagious.

• #95 Norovirus | Mass.gov

  https://www.mass.gov/info-details/norovirus

  Norovirus is a very contagious virus that causes acute gastroenteritis with vomiting and diarrhea. Gastroenteritis is inflammation of the stomach and intestines. While it is sometimes called the “stomach flu” or “stomach bug,” norovirus is not related to the flu, which is caused by the influenza virus. […] Common symptoms of norovirus infection come on suddenly and include vomiting, diarrhea, nausea, and abdominal cramps. People with norovirus can also experience fever, headache, and muscle aches. Symptoms usually begin 12 to 48 hours after exposure to the virus and last about 1 to 3 days in most people, with no long-term effects. […] People with norovirus infection are most contagious when they have symptoms, especially vomiting, and during the first few days after feeling better. Studies have shown that you can still spread norovirus for two weeks or more after you feel better. Sometimes people infected with norovirus have no symptoms but can still pass the virus to others.

• #96 Stomach Flu, Food Poisoning or Influenza: Which One Do You Have? | Northwestern Medicine

  https://www.nm.org/healthbeat/healthy-tips/stomach-flu-food-poisoning-or-influenza-which-one-do-you-have

  Most people do not need medical treatment for stomach flu. Focus on hydration and rest. To ease symptoms, your clinician may recommend anti-nausea or anti-diarrhea medications. […] […] While all three ailments share common symptoms, there are key differences to watch for: […] Onset: Symptoms of stomach flu often begin about one to two days after the virus gets into your body. […] […] Duration: Flu symptoms tend to last longer, while food poisoning and stomach flu symptoms often resolve more quickly. […] […] Compared to food poisoning, stomach flu tends to present with more nausea and vomiting, but less diarrhea. […] […] Understanding the differences between these three conditions can help you seek appropriate treatment and take steps to prevent infection.

• #97 Is It Food Poisoning or 2025 Stomach Flu? A GI Doctor Explains | Ochsner Health

  https://blog.ochsner.org/articles/is-it-food-poisoning-or-the-stomach-flu

  Understanding these key differences and potential causes can help manage symptoms and ensure appropriate treatment. […] While most people recover from food poisoning or stomach flu without definitively identifying the cause, prioritizing hydration and monitoring symptom progression is vital. Seeking medical attention when symptoms escalate ensures timely intervention and appropriate care.

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