it’s important to understand why PCR tests are the ones you want when accurate testing is important. The difference between a PCR and a Rapid Antigen Test What you normally think of as a home COVID ...

A study led by Osaka University recently found that the sensitivity of rapid antigen tests (RATs) for the Omicron variant of COVID-19 when compared with polymerase chain reaction (PCR) tests was 0.63 ...

There are three different ways to test for COVID-19: PCR tests, antigen tests and antibody tests. Each method is best for a different stage of COVID-19 infection. Used in sequence, all three methods ...

With Omicron subvariants continuing to evolve and spread, more and more people are testing positive for COVID across the US and Illinois. As of the latest update, eight counties in Illinois were ...

If you had COVID-19 symptoms in 2020, you probably would have masked up and braved a visit to a laboratory, doctor’s office, or clinic to get a polymerase chain reaction (PCR) test. A health care ...

If you buy something from a Verge link, Vox Media may earn a commission. See our ethics statement. Victoria Song is a senior reporter focusing on wearables, health tech, and more with 13 years of ...

Medically reviewed by Kate Colby, MPH People with asymptomatic or mild COVID illness generally test negative after nine days, but a polymerase chain reaction (PCR) test can still be positive for up to ...

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The FDA has issued emergency authorizations to 12 antibody tests for the virus. As federal officials gradually begin reopening the country, expanded testing is central to the conversation. Until now, ...

Among oil-rig workers, shipping crews, and other groups of people who work closely together, COVID-19 can spread like wildfire. Yet trying to prevent spread with long quarantines can be just as ...