Polymerase chain reaction (PCR) and rapid (antigen) tests for COVID-19 both involve taking a swab. Results for a PCR test take longer, as it needs to go to a laboratory. It is more costly but tends to ...

The pandemic isn’t over. Although it's no longer considered a national and public health emergency, we're currently seeing a surge in cases and the spread of two new variants—EG.5 (Eris) and BA.2.86 ( ...

NEW YORK -- Millions of Americans have purchased rapid COVID-19 tests online or at local stores and signed up to receive test kits through a free government program. Unlike conventional, lab-processed ...

University of Alberta-led research reports that new cases of syphilis dropped in Alberta following the introduction of rapid point-of-care testing and same-day treatment. The research team compared ...

The explosion of omicron cases in the U.S. smack in the middle of the holiday season is forcing Americans to rely more heavily on rapid tests prior to congregating with friends and family. In some ...

What does it mean if a person's rapid antigen test result comes back positive after five days of isolation due to COVID-19? According to the experts, that person is most likely still carrying a viral ...

Scientists at UC San Diego Health have teamed up with an Escondido company to develop a new rapid test for the coronavirus that causes COVID-19 that can be scaled up to analyze as many as 100,000 ...