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.

At-home COVID-19 tests have become an easy way to self-diagnose. But current tests have drawbacks, such as the length of time it takes to get an answer, or how accurately the test can identify a ...

UNIVERSITY PARK, Pa. — PCR tests, also called molecular tests or nucleic acid tests, are considered the gold standard in detecting the presence of SARS-CoV-2, the virus that gives rise to COVID-19.

Plainview-based Acupath Laboratories will soon see its COVID-19 saliva PCR testing assay at more independent pharmacies. The lab is partnering with Benasource, a group purchasing organization and ...

MINNEAPOLIS — They're a little hard to find right now, but COVID-19 detection tests are out there. "There's the PCR test which detect the genetic material of the virus, and there's the rapid antigen ...

The most common tests for COVID-19 are PCR tests, involving a nose and throat sample taken with a cotton swab. The procedure is often unpleasant, and the tests results require laboratory analysis. In ...

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 ...