Overview of Testing for SARS-CoV-2, the virus that causes …
https://www.cdc.gov/coronavirus/2019-ncov/hcp/testing-overview.html
Nucleic acid amplification tests (NAATs) are highly sensitive and highly specific tests that detect one or more viral ribonucleic acid (RNA) genes. PCR tests are the most common type of NAAT used for COVID-19 testing. Viral RNA may stay in a person’s body for up to 90 days after they test positive. See more 1. Point-in-time screening testing
1. Point-in-time screening testing
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