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  2. What Really Causes a False Positive COVID-19 Test? Experts ...

    www.aol.com/false-positive-covid-19-test...

    In the most basic sense, there are four possible outcomes for a COVID-19 test, whether it’s molecular PCR or rapid antigen: true positive, true negative, false positive, and false negative.

  3. All Your Questions About At-Home COVID Tests, Answered - AOL

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    Rapid tests are those tests you can do at home and provide results in about 15 minutes. On the other hand, you usually need to have a PCR test administered at a medical facility, and there's a ...

  4. The best FDA-approved at-home COVID tests - AOL

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    PCR tests have the highest accuracy rate at 95%, but some at-home antigen tests still boast up to an 89% accuracy rate. ... Most rapid tests are processed using a nasal swab, but a few use saliva ...

  5. COVID-19 testing - Wikipedia

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

    RT-PCR tests are accurate but require too much time, energy and trained personnel to run the tests. [56] "There will never be the ability on a [PCR] test to do 300 million tests a day or to test everybody before they go to work or to school," Deborah Birx, head of the White House Coronavirus Task Force, said on 17 April 2020. "But there might ...

  6. How to shop for at-home Covid tests, according to ... - AOL

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    Pros: Home collection tests generally produce more accurate results than rapid tests. “The reason for that is because the gold standard PCR test is run on the sample, and the people running the ...

  7. 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]

  8. At-home Covid testing: When to test and what your ... - AOL

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    A PCR test at a doctor’s office or laboratory has a better chance of picking up low concentrations of the virus, so a negative PCR test might be more reliable. “But again, there’s no such ...

  9. 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.

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