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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

   After more than two years of evading COVID-19, I tested positive at home on a rapid antigen test during the summer of 2022. At first, the line was so faint that it didn't even show up in photos.

3. What should you do if you’re still testing positive for COVID ...

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

   Most people will stop testing positive on a rapid antigen COVID-19 test within about 10 days, Cardona says. "Within 10 days after your initial positive test, you should convert back to negative ...

4. 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]

5. 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.

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

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

   A person may test positive because they are still shedding viable virus, or it could be viral debris that is being picked up by the test, says Amesh A. Adalja, M.D., senior scholar at the Johns ...

7. Rapid antigen test - Wikipedia

   en.wikipedia.org/wiki/Rapid_antigen_test

   A COVID-19 Rapid Antigen test(top) with a Covid-19 Rapid Antigen and a Influenza A&B Rapid Antigen Test(bottom) A rapid antigen test (RAT), sometimes called a rapid antigen detection test (RADT), antigen rapid test (ART), or loosely just a rapid test, is a rapid diagnostic test suitable for point-of-care testing that directly detects the presence or absence of an antigen.

8. You can still be contagious with COVID if you have a negative ...

   www.aol.com/news/still-contagious-covid-negative...

   If you get two negative at-home COVID test results 48 hours apart after previously testing positive, you are likely no longer contagious. But how long that will take is "wholly dependent on the ...

9. COVID-19 testing in the United States - Wikipedia

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

   The WHO did not offer any test kits to the U.S. because the U.S. normally had the supplies to produce their own tests. [3] The United States had a slow start in widespread SARS-CoV-2 testing. [4] [5] From the start of the outbreak until early March 2020, the CDC gave restrictive guidelines on who should be eligible for COVID-19 testing. The ...