Covid-19 At-Home Testing and PCR, Rapid Testing Questions: …
https://www.nytimes.com/article/tests-covid-omicron-pcr-rapid.html
WebDec 24, 2021 · A P.C.R. test is more sensitive and will identify an infection sooner, but it takes more time to get the result. Both tests are useful, but with a fast-spreading variant like Omicron, a...
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