Add Yahoo as a preferred source to see more of our stories on Google. By now, most of us know the basics of taking a COVID-19 test at home. With cases, test positivity and hospitalizations due to ...

For any American wondering if they have Covid-19, there are two kinds of tests available: polymerase chain reaction (PCR) and rapid antigen (sometimes just called “rapid tests”). The two tests work in ...

The warning is for the “Flowflex SARS-CoV-2 Antigen Rapid Test (Self-Testing)” from ACON Laboratories. The test comes in a dark blue box with white lettering and symbols in the lower right corner of ...

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 ...

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 ...

With new COVID cases in Florida on the rise, taking an easy-to-get rapid test can give you quick results. But the timing has become tricky. If you have COVID-19 symptoms, such as fever, cough, ...

In early January, more than 700 Stanford University athletes took rapid Covid tests upon returning to the campus. Those who tested negative — and some who tested positive — were also given PCR tests.

For instance, if you only get a very faint line, it might be hard to know whether or not that means your results are positive. I know how that feels firsthand. After more than two years of evading ...