A decision by Hong Kong health authorities to stop taking nasal swab samples for Covid-19 polymerase chain reaction (PCR) tests could allow more imported cases to enter the community, but does not ...

NEW YORK -- Should you take your COVID tests by swabbing your throat instead of your nostril? ABC's Chief Medical Correspondent Dr. Jen Ashton says it really depends on the test. Dr. Ashton joined ...

At-home COVID-19 tests have become an easy way to self-diagnose. But current tests have drawbacks, such as the length of time it takes to get an answer, or how accurately the test can identify a ...

Two types of COVID-19 tests, the rapid antigen test and the polymerase chain reaction (PCR) test, are available in the United States. The PCR typically relies on lab testing and is still considered ...

Experts explain why you shouldn't do a throat swab for at-home COVID testing, and they break down what to do instead. Given the wave of COVID-19 cases due to the Omicron variant, more people than ever ...

An April 2 Facebook video claims to be revealing the "truth about PCR tests.” "They have placed a magnetic beacon, so not only will people be biologically changed, but they will be tagged," a woman in ...

Researchers have developed a working prototype of a PCR test for monkeypox that provides accurate, easy-to-read results The test works with a compact, portable system developed for COVID-19 ...