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 ...

BOSTON (CBS) - A Carlisle man tells WBZ he thought a negative rapid 15-minute Covid-19 test was all he needed to avoid quarantine after vacation. But he was not all set. While the FDA said positive ...

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 ( ...