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  2. What does a faint line on a rapid COVID-19 test mean? - AOL

    www.aol.com/faint-line-covid-19-test-225851470.html

    However, people who've had COVID-19 may continue to test positive on PCR tests for up to 90 days, so it may be difficult to use a PCR test to diagnose a new coronavirus infection.

  3. Got a Faint Line on a COVID-19 Home Test? Here's What ... - AOL

    www.aol.com/got-faint-line-covid-19-145700240.html

    A false positive isn't as likely as a false negative result on a home test early in a person's infection, explains Sandra H. Bonat, M.D., a pediatric expert and virologist with VIP StarNetwork, a ...

  4. Does a Faint Line on a COVID Test Mean You Have COVID? - AOL

    www.aol.com/does-faint-line-covid-test-130000248...

    Doctors generally agree that this means you have COVID-19. “A faint line on a COVID test means the test is positive,” says infectious disease expert Amesh A. Adalja, M.D., a senior scholar at ...

  5. What to do if your COVID test expires — or if you test ...

    www.aol.com/covid-test-expires-test-positive...

    At-home COVID-19 test kits can expire, so it’s best to check the box for an expiration date, according to experts. But even if the date has passed, your test kit could still be good to use.

  6. COVID-19 rapid antigen test - Wikipedia

    en.wikipedia.org/wiki/COVID-19_rapid_antigen_test

    COVID-19 rapid antigen tests (RATs) have been widely used for diagnosis of COVID-19. The World Health Organization (WHO) COVID-19 Case Definition states that a person with a positive RAT (also known as an antigen rapid diagnostic test or Antigen-RDT) can be considered a "confirmed case of SARS-CoV-2 infection" in two ways. [10]

  7. COVID-19 testing - Wikipedia

    en.wikipedia.org/wiki/COVID-19_testing

    COVID-19 Antigen Rapid Test Kit; the timer is provided by the user. Mucus from nose or throat in a test liquid is placed onto a COVID-19 rapid antigen diagnostic test device. COVID-19 rapid testing in Rwanda. An antigen is the part of a pathogen that elicits an immune response. Antigen tests look for antigen proteins from the viral surface.

  8. Still Testing Positive for COVID-19? Here’s What to Know - AOL

    www.aol.com/still-testing-positive-covid-19...

    We asked doctors to explain how long you can expect to test positive for COVID-19, ... Sign in. Mail. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us. Mail.

  9. Should You Use an Expired COVID Test? The Answer Might ... - AOL

    www.aol.com/lifestyle/expired-covid-tests-still...

    [table-of-contents] stripped COVID-19 has been a part of life for nearly four years now and, with new variants like EG.5, or “Eris,” and BA.2.86, or “Pirola” popping up, it shows no signs ...