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 ...

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 ...

Last week, I was about to go on a date, and because I'm severely immunocompromised, we agreed he would take a COVID test using one of my rapid home molecular tests. It was a courtesy—he felt perfectly ...

New COVID-19 restrictions for international travel and other activities are fueling consumer demand for highly accurate polymerase chain reaction, or PCR, tests with rapid turnaround times. Some ...

Finding a COVID-19 test has become a real challenge with the spread of the omicron variant. But there is also confusion over which test people should be getting, which is a PCR or antigen? “The two ...

A PCR test is often considered the gold standard for detecting coronavirus infection. It’s the test some employers want employees to take before returning to work after having Covid-19, and the one ...

A polymerase chain reaction (PCR) test detects genetic material from a pathogen or abnormal cell sample. Ways of collecting samples include a nasal swab, a saliva swab, or taking a sample of blood.

With COVID case rates once again surging across the DMV, and many employers/schools tightening their return-to-building policies, rapid tests have become the hot-button item to secure this winter.