No one is really excited about a nasal swab or spitting in a tube, but now that testing has become the next front in the war against COVID-19, rapid tests (now available for free through ...

Add Yahoo as a preferred source to see more of our stories on Google. For any American wondering if they have Covid-19, there are two kinds of tests available: polymerase chain reaction (PCR) and ...

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 ...

Posts circulating on Facebook and Instagram claim the Centers for Disease Control and Prevention will stop using its covid-19 test because it cannot differentiate between the covid virus and flu ...

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.

Every American traveling abroad needs to take an antigen test to return to the United States. But the start of the trip is often even more cumbersome, as many other countries (nearly every one I have ...

Ducharme is a contributor to TIME. A medical worker performs a COVID-19 test at a screening center in Saint-Denis, France, on Nov. 4, 2020. Ducharme is a contributor to TIME. If you had COVID-19 ...

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 ...