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 ...

New research suggests Omicron may be easier to detect in saliva than nasal samples. Some experts recommend swabbing your throat then your nose for a COVID-19 rapid test, even if the test doesn't say ...

The first challenge with rapid at-home self tests for COVID-19 is getting one. But once you have a test, there are now growing questions about what body part you should swab to get the most accurate ...

A throat swab “is going to be right some of the time, but what percentage of the time is it wrong?” January 5, 2022 Add as a preferred source on Google Add as a preferred source on Google At-home ...

Whether you’re testing before heading back to work or want to check your own Covid status before traveling or heading to an event, there are a number of good rapid Covid tests that you can buy online ...