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 ...
Researchers often call the polymerase chain reaction test – known as the PCR test – "the gold standard" for detecting the COVID-19 virus. The test is considered highly reliable and effective, and it ...
A new highly sensitive, easy-to-use test for COVID-19 that requires a single swab and 15 minutes has received emergency use authorization (EUA) status from the US Food and Drug Administration (FDA).
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