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.
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 ...
A rapid, single-use PCR test made by San Jose, Calif.-based diagnostics company Visby Medical, received FDA authorization Feb. 10 to be used in a wide range of facilities, including urgent care ...
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