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 ...

COVID-19 rapid tests are now widely available in New Hampshire, but some of these test kits warn that a negative result may not mean a test-taker doesn’t have COVID. How should someone taking a test ...

Jan 10 (Reuters) - The fast-spreading Omicron variant has made us more reliant on rapid at-home antigen tests to tell us if we have COVID-19. But should we be swabbing our throats as well as our noses ...

Add Yahoo as a preferred source to see more of our stories on Google. Experts are monitoring increases in COVID-19 cases in the U.S. driven by new, highly infectious variants. So take a moment to make ...

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 ...

Abundant, free, rapid tests, many experts argue, are vitally important for mitigating what we know is fast becoming an endemic virus — Covid-19. But that is easier said than done. Between supply ...

A single negative result from an at-home rapid test, which takes about 15 minutes, is no guarantee that a person is not ill or carrying the virus. Testing may come either too soon, before enough virus ...

Hours-long lines for coronavirus PCR tests are prompting public officials to push the masses to use rapid, at-home antigen tests instead, but public health experts warn the 15-minute tests are ...