Here's what to know about the latest COVID strain - and how to tell if your at-home test is still good to use.

Last week, I was about to go on a date, and because I'm severely immunocompromised, we agreed he would take a COVID test using one of my rapid home PCR tests. It was a courtesy—he felt perfectly fine— ...

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 ...

Update, June 20: As of June 1, you can no longer order free COVID-19 tests from the federal government and USPS. A message on the covidtests.gov site says that ordering has “been suspended to preserve ...

Researchers often call the polymerase chain reaction test – known as the PCR test – "the gold standard" for detecting the COVID-19 virus. The test is considered highly reliable and effective, and it ...

This decision, well within current norms for care, was nonetheless consequential: The president was forced to cancel a trip to advocate for legislation in support of the domestic semiconductor ...

Because of its high accuracy, laboratory-based polymerase chain reaction (PCR) testing is the gold standard for infectious disease diagnostics. However, PCR technology requires highly trained staff ...

Thea van de Mortel teaches into the Master of Infection Prevention and Control program at Griffith University. A new type of COVID test is set to be available from November for Australians to use at ...

Please provide your email address to receive an email when new articles are posted on . Whole blood PCR testing was more effective than plasma for detecting West Nile virus. Cerebrospinal fluid PCR ...