Szybki test przepływowy na covid-19
Leczenie

Szybkie testy przepływowe (LFT) na COVID-19 to immunochromatograficzne narzędzia diagnostyczne wykrywające antygeny nukleokapsydu SARS-CoV-2 w próbkach nosowych, umożliwiające uzyskanie wyniku w 15-30 minut poza laboratorium. Czułość tych testów waha się od 34,1% do 88,1%, przy wysokiej swoistości 99,6%, co czyni je mniej czułymi niż RT-PCR, ale wystarczająco skutecznymi do szybkiego wykrywania zakaźnych pacjentów, zwłaszcza w pierwszym tygodniu od wystąpienia objawów, gdy ładunek wirusa jest najwyższy. Testy te są kluczowe w strategii „test-to-treat”, umożliwiając szybkie rozpoczęcie leczenia przeciwwirusowego (np. Paxlovid, Sotrovimab, Remdesivir, Molnupiravir) u pacjentów z grup wysokiego ryzyka ciężkiego przebiegu COVID-19, co znacząco zmniejsza ryzyko hospitalizacji i powikłań. Pacjenci kwalifikujący się do leczenia mogą otrzymać bezpłatne testy w aptekach, a pozytywny wynik wymaga pilnego kontaktu z lekarzem w celu oceny i wdrożenia terapii w ciągu 5-7 dni od początku objawów.

Szybki test przepływowy na COVID-19: podstawy diagnostyczne

Szybki test przepływowy na COVID-19 (ang. COVID-19 rapid lateral flow test) to diagnostyczne narzędzie immunochromatograficzne przeznaczone do wykrywania obecności antygenów nukleokapsydu wirusa SARS-CoV-2 w próbkach pobranych z nosa pacjenta. Jest to test, który pacjent może wykonać samodzielnie w celu sprawdzenia obecności zakażenia COVID-19. Testy te charakteryzują się szybkością wykonania (wyniki dostępne są zazwyczaj w ciągu 15-30 minut), prostotą użycia oraz możliwością przeprowadzenia poza warunkami laboratoryjnymi, co czyni je cennym narzędziem w diagnostyce przyłóżkowej oraz w warunkach domowych.12

Szybkie testy przepływowe zostały wdrożone na bezprecedensową skalę podczas pandemii COVID-19, umożliwiając dostęp do testowania poza placówkami opieki zdrowotnej. Testy te są szczególnie przydatne do identyfikacji osób zakaźnych, czyli takich, które stanowią ryzyko transmisji wirusa. Czułość testów antygenowych LFT dla SARS-CoV-2 waha się między 34,1% a 88,1%, przy ogólnej swoistości wynoszącej 99,6%, co czyni je mniej czułymi niż referencyjne metody RT-PCR, ale wystarczająco dokładnymi do efektywnego testowania na dużą skalę.13

Światowa Organizacja Zdrowia (WHO) określiła profil docelowego produktu dla testów antygenowych COVID-19 do zastosowania w przypadkach podejrzenia COVID-19 i bliskich kontaktów, podkreślając zastosowanie tych testów w obszarach, gdzie referencyjne testy molekularne są niedostępne lub gdzie czasy oczekiwania na wyniki molekularne uniemożliwiają ich użyteczność.4

Wskazania do stosowania testów przepływowych

Testy przepływowe są szczególnie zalecane dla osób kwalifikujących się do leczenia COVID-19, które należą do grupy wysokiego ryzyka ciężkiego przebiegu choroby. Pacjenci ci powinni wykonać test w przypadku wystąpienia objawów COVID-19, aby umożliwić szybką diagnozę i rozpoczęcie odpowiedniego leczenia. Warto podkreślić, że skuteczność testów jest najwyższa w pierwszym tygodniu od wystąpienia objawów, gdy poziom wirusa w organizmie jest najwyższy.56

W badaniach wykazano, że szybkie testy przepływowe wykrywają ponad 95% przypadków zidentyfikowanych przez PCR i poprawnie identyfikują 89% przypadków jako negatywne, gdy są stosowane na początku infekcji, wkrótce po wystąpieniu objawów. Zarówno krótszy czas trwania objawów, jak i wyższy ładunek wirusowy były znacząco powiązane z pozytywnymi wynikami testów przepływowych.7

Rola szybkich testów przepływowych w terapii COVID-19

Szybkie testy przepływowe odgrywają kluczową rolę w strategii „test-to-treat” (test w celu leczenia), umożliwiając szybkie podjęcie decyzji dotyczących leczenia pacjentów z COVID-19. Badania przeprowadzone przez naukowców z Uniwersytetu Harvarda wykazały, że częstsze testowanie znacząco zwiększa korzyści związane z leczeniem lekiem Paxlovid i zmniejsza ryzyko hospitalizacji.8

Autorzy badania podkreślają, że zmniejszenie opóźnienia między pozytywnym wynikiem testu a rozpoczęciem leczenia jest kluczowe, szczególnie w społecznościach podatnych na cięższy przebieg choroby, które mogą doświadczać barier w dostępie do testów i leczenia. Częste testowanie może także zmniejszyć koszty leczenia i liczbę hospitalizacji.9

Dostęp do testów dla kwalifikujących się pacjentów

Pacjenci kwalifikujący się do leczenia COVID-19 ze względu na najwyższe ryzyko poważnej choroby mogą otrzymać bezpłatne szybkie testy przepływowe z apteki. W celu potwierdzenia kwalifikowalności, pacjenci powinni przedstawić list lub e-mail otrzymany od NHS, informujący o ich kwalifikacji do leczenia COVID-19.1011

Bezpłatne testy przepływowe są obecnie dostępne jako usługa „walk-in”, gdzie uprawnieni pacjenci lub ich przedstawiciele mogą otrzymać pudełko zawierające pięć testów z lokalnej apteki uczestniczącej w programie. Farmaceuta może zadać pytania dotyczące historii medycznej pacjenta, aby potwierdzić jego kwalifikowalność.1213

Leczenie COVID-19 w oparciu o wyniki testów przepływowych

Dostępne leczenie COVID-19 dla osób o wysokim ryzyku ciężkiego przebiegu wymaga szybkiego wdrożenia po uzyskaniu pozytywnego wyniku testu przepływowego, aby było najbardziej skuteczne. Leki stosowane w leczeniu COVID-19 to:10

Proces leczenia po uzyskaniu pozytywnego wyniku

W przypadku pozytywnego wyniku testu, pacjenci kwalifikujący się do leczenia COVID-19 powinni jak najszybciej skontaktować się ze swoim lekarzem rodzinnym, NHS 111 lub specjalistą szpitalnym, który może skierować ich do oceny w celu określenia odpowiedniego leczenia. Placówka NHS doradzi, które leczenie, jeśli jakiekolwiek, jest odpowiednie dla pacjenta.1415

Niektóre leki są podawane w postaci tabletek lub kapsułek do połknięcia, podczas gdy inne są podawane przez kroplówkę w szpitalu, innym ośrodku opieki zdrowotnej lub w domu pacjenta. Po ocenie przez lekarza, pacjent otrzyma instrukcje dotyczące miejsca i czasu otrzymania leczenia oraz porady dotyczące bezpiecznego dotarcia do szpitala, jeśli jest to konieczne, ponieważ jest zakażony COVID-19.14

Leki przeciwwirusowe stosowane w terapii COVID-19

Paxlovid (nirmatrelvir i ritonavir) to lek przeciwwirusowy podawany w formie tabletek do przyjmowania w domu. Może być stosowany u pacjentów w wieku 18+ i powinien być podany w ciągu 5 dni od rozpoczęcia objawów COVID-19, choć okres ten może być wydłużony do 7 dni w razie potrzeby.16

Sotrovimab może być stosowany, jeśli Paxlovid jest nieodpowiedni. Jest podawany dożylnie i powinien być podany w ciągu 5 dni od rozpoczęcia objawów COVID-19. Leki te mają na celu zapobieganie rozwojowi ciężkiej postaci COVID-19 i zapobieganie hospitalizacji lub poważnej chorobie u osób najbardziej zagrożonych.17

Postępowanie po uzyskaniu wyniku testu przepływowego

W przypadku pozytywnego wyniku testu na COVID-19, zaleca się pozostanie w domu i unikanie kontaktów z innymi osobami przez:

  • 3 dni od dnia wykonania testu, jeśli pacjent ma mniej niż 18 lat (dzieci i młodzież są zazwyczaj zakaźne przez krótszy czas niż dorośli)
  • 5 dni od dnia wykonania testu, jeśli pacjent ma 18 lat lub więcej518

Jeśli wynik testu jest negatywny, a pacjent kwalifikuje się do leczenia COVID-19, należy wykonać łącznie 3 szybkie testy przepływowe w ciągu 3 dni (1 test dziennie), jeśli objawy COVID-19 nadal występują.518

Ograniczenia testów przepływowych w kontekście terapii

Główne ograniczenia szybkich testów przepływowych w kontekście terapii COVID-19 to:

  • Niższa czułość w porównaniu do testów RT-PCR, zwłaszcza u pacjentów bezobjawowych lub we wczesnej fazie infekcji
  • Możliwość wyników fałszywie negatywnych, które mogą opóźnić rozpoczęcie leczenia
  • Zmienna wydajność różnych testów dostępnych na rynku119

Należy zauważyć, że wynik testu negatywnego nie wyklucza COVID-19 i nie powinien być wykorzystywany jako jedyna podstawa do podejmowania decyzji dotyczących leczenia lub zarządzania pacjentem, w tym decyzji dotyczących kontroli infekcji. Jeśli wynik testu jest negatywny, a pacjent nadal doświadcza objawów podobnych do COVID-19, takich jak gorączka, kaszel i/lub duszność, powinien skonsultować się z lekarzem.20

Perspektywy rozwoju testów przepływowych w terapii chorób zakaźnych

Szybkie testy przepływowe mogą odegrać ważną rolę w wykrywaniu innych chorób o potencjale epidemicznym oraz oporności na środki przeciwdrobnoustrojowe. Rozwój testów przepływowych i ich zastosowanie w terapii są obecnie przedmiotem intensywnych badań naukowych.1

Naukowcy pracują nad testami, które umożliwiłyby klinicystom i rodzinom rozpoznanie, czy infekcja jest bakteryjna czy wirusowa, co mogłoby zmniejszyć niepotrzebne przepisywanie antybiotyków i wspomóc walkę z opornością na antybiotyki. Testy przepływowe mogą być również stosowane do wykrywania chorób o potencjale epidemicznym, takich jak wirusowe zakażenie układu oddechowego (RSV), grypa i koronawirusy.21

Innowacje w technologii testów przepływowych

Innowacje w dziedzinie testów przepływowych obejmują:

  • Testy multipleksowe umożliwiające jednoczesne wykrywanie wielu patogenów, np. SARS-CoV-2, grypy A i B
  • Zastosowanie kropek kwantowych (quantum dots) do zwiększenia czułości i swoistości testów
  • Cyfrowa łączność umożliwiająca łatwe i szybkie udostępnianie wyników testów
  • Nowe materiały o wysokiej czułości, takie jak nanocząstki enzymatyczne i nanodiamenty22232425

Integracja kropek kwantowych z testami przepływowymi ma ogromny potencjał w kontekście rewolucjonizowania wykrywania COVID-19, leczenia i zapobiegania, oferując wygodne i skuteczne podejście do walki z pandemią. Znaczna poprawa w zakresie detekcji sygnału zapewnia dokładną identyfikację nawet minimalnych ładunków wirusowych, wzmacniając precyzję i wiarygodność diagnoz COVID-19.2425

Przyszłość testów przepływowych w kontekście terapii

Przyszłe kierunki rozwoju testów przepływowych w kontekście terapii obejmują:

  • Opracowanie testów o wyższej czułości, pozwalających na wykrywanie niższych poziomów wirusa we wczesnych stadiach infekcji
  • Integracja z telemedycyną i zdalnymi konsultacjami medycznymi
  • Rozwój testów umożliwiających monitorowanie odpowiedzi na leczenie
  • Zastosowanie w programach badań przesiewowych na dużą skalę, mających na celu identyfikację przypadków i kontrolę transmisji262728

Testy przepływowe oparte na kropkach kwantowych wykazują znaczną czułość, z granicą wykrywalności 1 pg/ml w trybie bezpośrednim i 0,5 pg/ml w trybie wzbogacania. Funkcja szybkiego uzyskiwania wyników w miejscu opieki jest kluczowa dla szybkiej interwencji, izolacji i leczenia, co zmniejsza rozprzestrzenianie się wirusa i znacznie poprawia wyniki leczenia pacjentów.25

Podsumowanie znaczenia szybkich testów przepływowych w terapii COVID-19

Szybkie testy przepływowe na COVID-19 odgrywają istotną rolę w strategii „test-to-treat”, umożliwiając szybką identyfikację zakażeń i wdrożenie odpowiedniego leczenia, szczególnie u pacjentów z grupy wysokiego ryzyka ciężkiego przebiegu choroby. Chociaż mają one pewne ograniczenia w porównaniu do testów RT-PCR, ich zalety, takie jak szybkość, łatwość użycia i dostępność, czynią je cennym narzędziem w walce z pandemią COVID-19.810

Pacjenci kwalifikujący się do leczenia COVID-19 powinni mieć łatwy dostęp do testów przepływowych i być świadomi procedur zgłaszania pozytywnych wyników, aby umożliwić szybkie rozpoczęcie leczenia. Innowacje w technologii testów przepływowych będą nadal zwiększać ich rolę w diagnostyce i terapii COVID-19 oraz innych chorób zakaźnych w przyszłości.1617

Dalsze badania nad wydajnością testów przepływowych i ich rolą w różnych strategiach testowania są niezbędne, aby optymalizować ich zastosowanie w terapii COVID-19 i przyszłych wyzwaniach zdrowia publicznego.

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  1. 11.04.2026
  2. www.leksykon.com.pl

Materiały źródłowe

  • #1 Lateral flow test engineering and lessons learned from COVID-19 | Nature Reviews BioengineeringClose bannerClose banner
    https://www.nature.com/articles/s44222-022-00007-3
    Lateral flow tests (LFTs) were adopted at an unprecedented scale during the COVID-19 pandemic, enabling access to testing beyond healthcare settings. […] Key barriers to COVID-19 LFT development and adoption include lack of access to well characterized samples, limited accuracy, lack of connectivity, lack of evidence of cost-effectiveness, regulatory delays and centralized manufacturing capabilities. […] LFTs could also play an important part in the detection of other diseases of epidemic potential and antimicrobial resistance. […] The simplicity of LFTs comes with technical limitations and usage trade-offs. Notably, they are less sensitive than PCR and rely on visual readout. […] In this Review, we discuss the design principle of LFTs, and highlight key lessons learned from their use in the COVID-19 pandemic, including access, accuracy, affordability, manufacturing, regulation and funding.
  • #1 Lateral flow test engineering and lessons learned from COVID-19 | Nature Reviews BioengineeringClose bannerClose banner
    https://www.nature.com/articles/s44222-022-00007-3
    LFTs were adopted on an unprecedented scale during the COVID-19 pandemic, demonstrating their feasibility and acceptability on a global basis. […] Professional use and self-tests have enabled LFT-based testing to be expanded beyond healthcare facilities and into community settings and homes. […] COVID-19 testing programmes have been implemented on a city scale (for example, the United Kingdom Liverpool Community testing pilot), and on a national scale (for example, nationwide testing in Slovakia). […] Despite wide use and acceptability, COVID-19 LFTs and the care pathways in which they are used have limitations, particularly in terms of false positives and false negatives. […] The accuracy and, in particular, the sensitivity of LFTs is lower than that of reference RT-PCR methods, ranging between 34.1% and 88.1% for SARS-CoV-2 antigen LFTs, with an overall specificity of 99.6%.
  • #2 Development and Efficacy of Lateral Flow Point-of-Care Testing Devices for Rapid and Mass COVID-19 Diagnosis by the Detections of SARS-CoV-2 Antigen and Anti-SARS-CoV-2 Antibodies
    https://pubmed.ncbi.nlm.nih.gov/34679458/
    The COVID-19 pandemic is an ongoing global pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in 2020-2021. […] Opportune detection, confinement, and early treatment of infected cases present the first step in combating COVID-19. […] However, with an increasing urge for point-of-care tests, rapid and cheaper immunoassays are widely utilized, such as lateral flow immunoassay (LFIA), which can be used for rapid, early, and large-scale detection of SARS-CoV-2 infection. […] Generally, LFIA antigen tests for SARS-CoV-2 are less sensitive than viral NAATs, the „gold standard” for clinical COVID-19 diagnosis. However, antigen tests can be used for rapid and mass testing in high-risk congregate housing to quickly identify people with COVID-19, implementing infection prevention and control measures, thus preventing transmission. […] LFIA anti-SARS-CoV-2 antibody tests, IgM and/or IgG, known as serology tests, are used for identification if a person has previously been exposed to the virus or vaccine immunization.
  • #3 Lateral flow test engineering and lessons learned from COVID-19 | Nature Reviews BioengineeringClose bannerClose banner
    https://www.nature.com/articles/s44222-022-00007-3
    Thus, LFTs benefit COVID-19 testing in identifying infectiousness or risk of transmission. […] The WHO has established a target product profile for COVID-19 antigen LFTs for use in suspected COVID-19 cases and close contacts, highlighting the application of LFTs in areas where reference molecular testing is unavailable, or where molecular turnaround times obviate their utility. […] Fortuitously, COVID-19 antigen LFTs have sufficient accuracy for effective large-scale testing of SARS-CoV-2.
  • #4
    https://www.who.int/publications/i/item/antigen-detection-in-the-diagnosis-of-sars-cov-2infection-using-rapid-immunoassays
    Direct detection of SARS-CoV-2 viral proteins (antigens) in nasal swabs and other respiratory secretions using lateral flow immunoassays (also known as rapid diagnostic tests, RDTs) offers a faster and less expensive method to test for SARS-CoV-2 than the reference method, nucleic acid amplification tests (NAATs). […] This interim guidance offers recommendations on the priority uses of antigen-detecting rapid diagnostic tests (Ag-RDTs) in specific populations and settings, including (i) for primary case detection in symptomatic individuals suspected to be infected and asymptomatic individuals at high risk of COVID-19, (ii) for contact tracing, (iii) during outbreak investigations and (iv) to monitor trends of disease incidence in communities. […] Ag-RDTs meeting minimum performance requirements can be used outside of clinical and laboratory settings, including in communities, by trained operators in accordance with instructions.
  • #5 COVID-19 testing – NHS
    https://www.nhs.uk/tests-and-treatments/covid-19-rapid-lateral-flow-test/
    A COVID-19 rapid lateral flow is a test you do yourself to check for COVID-19. They are available for free on the NHS to people who are eligible for COVID-19 treatment. […] If youre eligible for COVID-19 treatments, youll need to take a COVID-19 rapid lateral flow test if you have any symptoms of COVID-19. […] You can get free COVID-19 rapid lateral flow tests from a pharmacy if youre eligible for COVID-19 treatments because youre at highest risk of getting seriously ill from COVID-19. […] If you test positive for COVID-19, try to stay home and avoid meeting people for: 3 days after the day the test was taken if youre under 18 years children and young people tend to be infectious for less time than adults; 5 days after the day you took your test if youre aged 18 or over. […] If you test negative and youre eligible for COVID-19 treatments, you need to do a total of 3 rapid lateral flow tests over 3 days (1 test a day) if you continue to have COVID-19 symptoms.
  • #6 Lateral Flow Tests Effective at Detecting COVID-19 When Used at Symptom Onset | Today’s Clinical Lab
    https://www.clinicallab.com/lateral-flow-tests-effective-at-detecting-covid-19-when-used-at-symptom-onset-25806
    A new study by researchers at Queen Mary University of London, University of Oxford, Institute for Advanced Studies, Vienna, and the Medical University of Graz, has found that lateral flow tests detect COVID-19 with similar accuracy to laboratory-based PCR tests, providing they are used at the onset of infection and soon after symptoms start. […] The lateral flow tests detected more than 95 percent of the cases found by PCR, and correctly identified 89 percent of cases as negative. […] Previous studies have suggested lateral flow tests may be less sensitive than PCR in detecting COVID-19, particularly among asymptomatic individuals and during the early or late stage of an infection when the viral load is lowest. But we have found that in patients who are newly symptomatic, the two testing methods have similar levels of accuracy.
  • #7 Lateral Flow Tests Effective at Detecting COVID-19 When Used at Symptom Onset | Today’s Clinical Lab
    https://www.clinicallab.com/lateral-flow-tests-effective-at-detecting-covid-19-when-used-at-symptom-onset-25806
    Countries are considering using lateral flow tests to manage future waves of the pandemic. Our findings support this move, but ensuring tests are properly administered should be integral to any strategy. […] In our study, both shorter duration of symptoms and higher viral load were significantly associated with positive lateral flow tests. This highlights the necessity of testing at early infection with lateral flow tests, and shows that in patients who are newly symptomatic, the two testing methods have similar levels of accuracy. […] Our study is the first study to demonstrate that point-of-care antigen testing using lateral flow tests combined with clinical assessment of symptomatic patients can rapidly and accurately detect SARS-CoV-2 infection in primary care. […] The study results provide the basis for future containment strategies in primary care, which can make an important contribution in control and prevention of a pandemic. In the context of future relaxations of lockdown rules—in addition to vaccinations—the early detection of people with infection through reliable tests will be necessary in order to control COVID-19. […] This study provides evidence that lateral flow tests can accurately detect SARS-CoV-2 infection as an alternative to PCR testing among symptomatic patients in a real-life primary care setting across a large geographical area.
  • #8 Azthena logo with the word Azthena
    https://www.news-medical.net/news/20220124/Researchers-examine-benefits-of-lateral-flow-testing-with-regards-to-the-new-Paxlovid-drug-for-treatment-of-COVID-19.aspx
    Lateral flow devices, or lateral flow tests, have played a significant role in helping to identify infectious individuals during the coronavirus disease 2019 (COVID-19) pandemic. […] As more treatments for COVID-19 are developed, researchers from Harvard University have been exploring the benefits of different testing schemes with regards to the new Paxlovid drug. […] While the tests tend to be effective at identifying individuals who are infectious, they can also detect infection early enough to make recently developed anti-COVID drugs, such as the Pfizer developed Paxlovid drug, effective. […] The results showed that more frequent testing increased the benefits associated with treatment with Paxlovid significantly and that the treatment reduced the risk of hospitalization. […] The authors have successfully characterized the benefit rapid testing can bring to treatment, with more frequent testing providing the best results.
  • #9 Azthena logo with the word Azthena
    https://www.news-medical.net/news/20220124/Researchers-examine-benefits-of-lateral-flow-testing-with-regards-to-the-new-Paxlovid-drug-for-treatment-of-COVID-19.aspx
    They highlight that reduction in delay from positive tests to treatment is essential, as increases in testing coverage particularly in communities vulnerable to more severe disease that might suffer from barriers to testing and treatment. […] The frequent testing, they propose could reduce the cost of treatments and reduce hospitalizations, and the analysis performed in their paper could help inform drug manufacturers, healthcare workers, and potentially public health policy.
  • #10 Treatments for coronavirus (COVID-19) | nidirect
    https://www.nidirect.gov.uk/articles/treatments-coronavirus-covid-19
    Getting your coronavirus (COVID-19) vaccine is the best way to protect yourself from the virus. However, treatments are available for those with coronavirus who are at greater risk of becoming seriously ill. […] If you’re eligible for a COVID-19 treatment, you should stay alert to the symptoms of COVID-19 and keep a pack of lateral flow tests at home, in case you develop symptoms. […] If youre eligible, you can get a free rapid lateral flow test kit from a community pharmacy. […] If your test is positive, contact your GP or GP out of hours service, who can refer you to be assessed for a COVID-19 treatment. […] These additional treatments need to be given quickly after you get a positive lateral flow test result to be most effective. […] COVID-19 treatments available are: Antiviral Paxlovid (may be known as nirmatrelvir plus ritonavir), nMAB treatment Sotrovimab, Antiviral Remdesivir (Veklury), Antiviral molnupiravir (Lagevrio).
  • #11 Changes to how you access Covid-19 Lateral Flow Tests – SarcoidosisUK
    https://www.sarcoidosisuk.org/changes-to-how-you-access-covid-19-lateral-flow-tests/
    As of the 16th of November 2023, free rapid lateral flow tests are no longer available to order through the Government website (GOV.UK) or 119. If you are eligible for COVID-19 treatment, you now need to collect your lateral flow tests from a local pharmacy. […] It is a walk-in service where eligible patients, or their representatives, can collect a box of five lateral flow tests from a participating local pharmacy. The pharmacy may ask you about your medical history to confirm you’re eligible for free tests.
  • #12 NHS England » NHS Lateral Flow Device (LFD) Tests Supply Service: Advanced Service
    https://www.england.nhs.uk/primary-care/pharmacy/pharmacy-services/nhs-ltd-tests-supply-service/
    The NHS offers COVID-19 treatment to people with COVID-19 who are at risk of becoming seriously ill. It is currently estimated that around 3.9 million patients are potentially eligible for free lateral flow device (LFD) tests. Although access to LFD tests may be supplemented by other pathways, (for example, through anticipatory or specialist care), community pharmacy is well placed within the local community to provide local and rapid access for patients. […] Access to COVID-19 community-based treatment will continue to be based on a confirmed COVID-19 infection, achieved with a diagnostic LFD test, in line with some of the recommended treatments product licences. Given the short efficacy window for treatment and practical implications of point of care testing, tests need to be available for eligible patients to access in advance of developing symptoms.
  • #13 NHS England » NHS Lateral Flow Device (LFD) Tests Supply Service: Advanced Service
    https://www.england.nhs.uk/primary-care/pharmacy/pharmacy-services/nhs-ltd-tests-supply-service/
    This service is to offer at risk patients eligible for COVID-19 treatments, access to LFD tests to enable testing at home for COVID-19, if they develop symptoms of infection. A positive LFD test result will be used to inform a clinical assessment to determine whether the patient is suitable for and will benefit from NICE recommended COVID-19 treatments. […] This is a walk-in service where patients/patients representatives can collect one box of 5 LFD tests from a participating community pharmacy on confirmation that the patient is part of the cohort potentially eligible for COVID-19 treatments.
  • #14 Treatments for coronavirus (COVID-19) | nidirect
    https://www.nidirect.gov.uk/articles/treatments-coronavirus-covid-19
    THE HSC Trust will advise which treatment, if any, is suitable for you. […] Some treatments come as either tablets or capsules that you swallow. […] Others are given to you through a drip in your arm (infusion), at a hospital, other healthcare site, or in your home. […] Once you have been reviewed by a doctor, you will receive instructions on where and when you will get the treatment and advice on how to safely get to the hospital, if that is needed, as you are COVID-19 positive.
  • #15 COVID-19 rapid lateral flow test | Health Advice from Plashet Pharmacy
    https://plashetpharmacy.co.uk/nhs_conditions_covid-19-rapid-lateral-flow-test
    COVID-19 rapid lateral flow test Treatment, therapy […] If you want to get tested, but you’re not eligible for COVID-19 treatment, you’ll need to pay for the test yourself. […] You can buy COVID-19 rapid lateral flow tests from some pharmacies and retailers. […] A rapid lateral flow test is done to check if you have COVID-19. […] If you’re eligible for COVID-19 treatments, you’ll need to take a COVID-19 rapid lateral flow test if you have any symptoms of COVID-19. […] Most people cannot get COVID-19 rapid lateral flow tests for free from the NHS. […] You may be able to get free COVID-19 rapid lateral flow tests if you’re aged 12 or over and you’re eligible for COVID-19 treatment because you’re at highest risk of getting seriously ill from COVID-19. […] You can get free COVID-19 rapid lateral flow tests from a pharmacy if you’re eligible for COVID-19 treatments because you’re at highest risk of getting seriously ill from COVID-19. […] If you’ve been sent a letter or email from the NHS about COVID-19 treatments, you should show this at the pharmacy to help confirm your eligibility. […] If you test positive for COVID-19, try to stay home and avoid meeting people for: 3 days after the day the test was taken if you’re under 18 years children and young people tend to be infectious for less time than adults; 5 days after the day you took your test if you’re aged 18 or over. […] If you test positive and you’re eligible for COVID-19 treatments, call your GP surgery, NHS 111 or hospital specialist as soon as possible. […] If you test negative and you’re eligible for COVID-19 treatments, you need to do a total of 3 rapid lateral flow tests over 3 days (1 test a day) if you continue to have COVID-19 symptoms.
  • #16 Access to COVID-19 treatments – Immunodeficiency UKAccessibilityIncrease TextDecrease TextGrayscaleHigh ContrastNegative ContrastLight BackgroundLinks UnderlineReadable FontReset
    https://www.immunodeficiencyuk.org/immunodeficiency/management/covid-19/access-to-covid-19-treatments/
    If you have an immunodeficiency and have symptoms of COVID-19 and test positive, then you should access COVID-19 treatments as soon as possible. […] If you get symptoms of COVID-19, you should take a lateral flow test as soon as possible. If it’s positive, you’ll need to log your positive test online or by calling 119. […] The treatments available are: Paxlovid (nirmatrelvir/ritonavir) (antiviral, tablets) and Sotrovimab (antibody, intravenous drip), if Paxlovid is unsuitable. […] These medicines aim to stop COVID-19 from becoming severe and to prevent hospitalisation or serious illness in those most at risk. […] Paxlovid (nirmatrelvir and ritonavir) is an antiviral treatment taken as tablets at home, can be used in people aged 18+, and should be given within 5 days of covid symptoms starting, but this can be extended to 7 days if needed.
  • #17 Access to COVID-19 treatments – Immunodeficiency UKAccessibilityIncrease TextDecrease TextGrayscaleHigh ContrastNegative ContrastLight BackgroundLinks UnderlineReadable FontReset
    https://www.immunodeficiencyuk.org/immunodeficiency/management/covid-19/access-to-covid-19-treatments/
    Sotrovimab may be used if Paxlovid is unsuitable, is given into a vein (intravenously), and should be given within 5 days of covid symptoms starting. […] Make sure you keep a box of rapid lateral flow tests at home. Free testing is no longer available to the general public, but if you are eligible for COVID treatments, you can still get free tests. […] From 6 November 2023, you should be able to pick up free rapid lateral flow tests from a local pharmacy.
  • #18 COVID-19 testing – NHS
    https://www.nhs.uk/conditions/covid-19-rapid-lateral-flow-test/
    A COVID-19 rapid lateral flow is a test you do yourself to check for COVID-19. They are available for free on the NHS to people who are eligible for COVID-19 treatment. […] If you’re eligible for COVID-19 treatments, you’ll need to take a COVID-19 rapid lateral flow test if you have any symptoms of COVID-19. […] You can get free COVID-19 rapid lateral flow tests from a pharmacy if you’re eligible for COVID-19 treatments because you’re at highest risk of getting seriously ill from COVID-19. […] If you test positive for COVID-19, try to stay home and avoid meeting people for: 3 days after the day the test was taken if you’re under 18 years – children and young people tend to be infectious for less time than adults; 5 days after the day you took your test if you’re aged 18 or over. […] If you test negative and you’re eligible for COVID-19 treatments, you need to do a total of 3 rapid lateral flow tests over 3 days (1 test a day) if you continue to have COVID-19 symptoms.
  • #19 Azthena logo with the word Azthena
    https://www.news-medical.net/news/20230123/Review-on-lateral-flow-test-use-spearheaded-by-SARS-CoV-2-pandemic.aspx
    Major roadblocks in LFT development and use include the lack of accessibility to well-characterized samples for testing and validation, low sensitivity, limited digital connectivity, scarce cost-efficacy evidence, delays in regulatory processes, and centralized manufacture of materials. […] Observations from the pandemic have shown that LFT self-testing at a large scale could offer several benefits, such as early identification and prompt self-isolation, increased accessibility to diagnostic tests, increased frequency of testing, increased compliance with public health measures, curtailed viral transmission, and facilitated early recovery. […] Next-generation LFTs would target antigens, antibodies, and molecules, with AMR (antimicrobial resistance) panels and quick response (QR) codes, for use not only for self-testing, clinical diagnosis, screening and surveillance testing but also for environmental monitoring, using ultra-sensitive materials such as enzymatic nanoparticles, and nanodiamonds, with digitalized result capturing. […] To conclude, based on the review findings, next-generation of next-generation LFTs could provide means for rapid and decentralized testing with high sensitivity and specificity at a mass scale.
  • #20
    https://ihealthlabs.com/pages/ihealth-covid-19-antigen-rapid-test-details?srsltid=AfmBOop2mpoqmtSOkRJomS3gsEUU36OeIN8Ex5HjRGtkhX4hO4ncQmQQ
    The iHealth COVID-19 Antigen Rapid Test is able to detect small parts of the SARS-CoV-2 virus, known as N protein or antigens, in your nasal secretions. […] A positive test result for COVID-19 indicates that antigens from SARS-CoV-2 were detected, and the patient is very likely to be infected with the virus and presumed to be contagious. […] If your test result is positive with the iHealth COVID-19 Antigen Rapid Test, you should self-isolate and seek follow-up care with your healthcare provider as additional testing may be necessary. […] A negative test result for this test means that antigens from SARS-CoV-2 were not present in the specimen above the limit of detection. However, a negative result does not rule out COVID-19 and should not be used as the sole basis for treatment or patient management decisions, including infection control decisions. […] If you test negative and continue to experience COVID-19 like symptoms of fever, cough and/or shortness of breath you should seek follow up care with your healthcare provider. Your healthcare provider may suggest you need another test to determine if you have contracted the virus causing COVID-19.
  • #21 Accessible Lateral Flow Assays: Test to Treat, Test to Protect | The Scientist
    https://www.the-scientist.com/accessible-lateral-flow-assays-test-to-treat-test-to-protect-71437
    Lateral flow antigen tests, also known as rapid tests, have a rich history in infectious disease detection and now enable self-testing as a key covid mitigation strategy. […] COVID-19 lateral flow tests detect up to roughly one million viruses per sample, so they detect the people with the highest risk of transmission. These tests took on a new and important public health role to interrupt the chain of transmission within communities. […] I think simple rapid tests that allow clinicians and families to know whether an infection is bacterial or viral would be ideal. We would like to develop tests that reduce unnecessary prescriptions for antibiotics, and tests for diseases of epidemic potential that we want to detect early, such as respiratory syncytial virus (RSV), influenza, and coronaviruses. That is the biggest wish list right now.
  • #22 Recent Advances in Quantum Dot-Based Lateral Flow Immunoassays for the Rapid, Point-of-Care Diagnosis of COVID-19
    https://www.mdpi.com/2079-6374/13/8/786
    The COVID-19 pandemic has spurred demand for efficient and rapid diagnostic tools that can be deployed at point of care to quickly identify infected individuals. […] Point-of-care testing (POCT) has emerged as a promising alternative due to its user-friendliness, rapidity, and high specificity and sensitivity. […] Immunodiagnostic methods that offer the rapid identification of positive cases are urgently required. […] Quantum dot (QD)-based lateral flow immunoassays have emerged as a promising alternative, offering significant advancements in sensitivity and specificity. […] Moreover, the lateral flow immunoassay (LFIA) method, which fulfills POCT standards, has gained popularity in diagnosing COVID-19. […] This review focuses on recent advancements in QD-based LFIA for rapid POCT COVID-19 diagnosis.
  • #23 Recent Advances in Quantum Dot-Based Lateral Flow Immunoassays for the Rapid, Point-of-Care Diagnosis of COVID-19
    https://www.mdpi.com/2079-6374/13/8/786
    The benefits of using the QD-based LFIA as a POCT method are highlighted, and its published performance in COVID-19 diagnostics is examined. […] Overall, the integration of quantum dots with LFIA holds immense promise in terms of revolutionizing COVID-19 detection, treatment, and prevention, offering a convenient and effective approach to combat the pandemic. […] The emergence of the coronavirus disease 2019 (COVID-19) in Wuhan, China, towards the end of 2019, swiftly evolved into a global pandemic, resulting in significant consequences for human health and wellbeing. […] In the realm of COVID-19 diagnosis, a groundbreaking innovation has emerged in the form of Point-of-Care (POC) lateral flow immunoassays (LFIAs), which harness the power of quantum dots (QDs). […] Point-of-care testing (POCT) plays a crucial role in enabling healthcare professionals to make timely clinical decisions and implement appropriate treatments.
  • #24 Recent Advances in Quantum Dot-Based Lateral Flow Immunoassays for the Rapid, Point-of-Care Diagnosis of COVID-19
    https://www.mdpi.com/2079-6374/13/8/786
    The advantages of POCT include its low cost, rapidity, simplicity, efficiency, and effectiveness in identifying specific disease biomarkers. […] A notable approach in diagnostic strategies is the utilization of the lateral flow immunoassay (LFIA). […] The LFIA methodology has garnered substantial attention across multiple disciplines, owing to its versatility and potential for rapid on-site testing. […] One of the key advantages of these diagnostic tests is that they do not necessitate highly skilled personnel to operate specialized equipment or carry out complex analytical procedures. […] Although commercial LFIAs were initially designed for the detection of human chorionic gonadotropin, their applications have considerably expanded since then. […] The traditional LFIA method offers qualitative or semi-quantitative outcomes through a straightforward process that relies on color visualization, eliminating the need for additional equipment.
  • #25 Recent Advances in Quantum Dot-Based Lateral Flow Immunoassays for the Rapid, Point-of-Care Diagnosis of COVID-19
    https://www.mdpi.com/2079-6374/13/8/786
    The LFIA stands out as an appealing detection tool that possesses all the necessary qualities for effective colorimetric assays. […] The sensitivity of the LFIA is significantly influenced by the presence of labeled conjugates. […] The QD-based LFIA demonstrates remarkable sensitivity, with a detection limit of 1 pg/mL in direct mode, and 0.5 pg/mL in enrichment mode. […] The QD-based LFIA stands as a highly promising and innovative point-of-care testing method for the detection of COVID-19. […] The incorporation of quantum dots resulted in a remarkable improvement in terms of signal detection. […] This heightened sensitivity ensures the accurate identification of even minuscule viral loads, bolstering the precision and reliability of COVID-19 diagnoses. […] The quantum dot technology empowers the assay with multiplexing capabilities, making it possible to simultaneously detect multiple viral targets within a single test. […] The ability to obtain quick results at the point of care is crucial for timely intervention, isolation, and treatment, thereby reducing the spread of the virus and substantially improving patient outcomes.
  • #26 COVID-19 testing using lateral flow assays: sensitive, rapid, easy to use and point-of-care
    https://www.selectscience.net/article/covid-19-testing-using-lateral-flow-assays-sensitive-rapid-easy-to-use-and-point-of-care
    Critical efforts are currently being made to reliably detect COVID-19 infections as well as test the immunity of populations. […] Lateral flow immunoassay, a membrane-based portable platform to detect and quantify analytes without expert support, akin to home pregnancy tests, is a leading diagnostic choice compared to other more elaborate and time-consuming options. […] „We provide creative solutions to technical challenges that our customers have during the COVID-19 test development,” explains Hannigan. […] „Lateral flow tests are cost-effective,” says O’Brien. „They’re cheap to manufacture at a large scale. They are also simple to use, offer results rapidly, and are portable.” […] „Using lateral flow testing, you can get results in less than 10 minutes.” […] „Due to the portable nature of the test, it can go anywhere. This is particularly useful to access remote locations where healthcare testing facilities are limited or may not exist at all,” O’Brien adds.
  • #27 COVID-19 testing using lateral flow assays: sensitive, rapid, easy to use and point-of-care
    https://www.selectscience.net/article/covid-19-testing-using-lateral-flow-assays-sensitive-rapid-easy-to-use-and-point-of-care
    Given its clear benefits compared to other immunoassay methods, the research team at Merck KGaA, Darmstadt, Germany is currently providing the ingredients to develop lateral flow assays to improve COVID-19 detection using both serological and antigen-based approaches. […] „Lateral flow-based antibody or serological tests, however, can diagnose different stages of the COVID-19 infection.” […] „These antibodies can be IgM antibodies if there’s an acute infection. Or IgG antibodies, for longer-term infections,” explains Hannigan. […] „It could also provide population screening to determine the level of immunity within the population.” […] „We obviously want the tests to be highly sensitive. So, we’re developing our antigen detection test using europium particles that are tenfold more sensitive than latex or colloidal particles,” explains O’Brien.
  • #28 COVID-19 testing using lateral flow assays: sensitive, rapid, easy to use and point-of-care
    https://www.selectscience.net/article/covid-19-testing-using-lateral-flow-assays-sensitive-rapid-easy-to-use-and-point-of-care
    „If the patient doesn’t have an active infection, there may be insufficient viral load in the sample, resulting in false negatives,” explains Hannigan. […] „I hope that our research will allow our customers to use the critical raw materials and reagents that we supply in the manufacturing of their test kits, which will enable faster, more reliable diagnosis of COVID-19,” says Hannigan. […] „It’s wonderful to be able to contribute towards COVID-19 testing.”