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For diagnosing current SARS-CoV-2 infection, the Centers for Disease Control and Prevention (CDC) recommends using either a nucleic acid amplification test (NAAT) or an antigen test. 1 Testing may also be used for screening and to determine the length of a patient’s isolation period. 2 There may be a window period of up to 5 days after ...
May 12, 2023 · Updates as of June 16, 2021. Clarified the differences between laboratory-based and point-of-care NAATs. A Nucleic Acid Amplification Test, or NAAT, is a type of viral diagnostic test for SARS-CoV-2, the virus that causes COVID-19. NAATs detect genetic material (nucleic acids). NAATs for SARS-CoV-2 specifically identify the RNA (ribonucleic ...
The Coronavirus SARS-CoV-2 (COVID-19) by nucleic acid amplification test is for in vitro diagnostic use under the FDA Emergency Use Authorization (EUA) for U.S. laboratories certified under CLIA to perform high complexity tests. This test has not been FDA cleared or approved.
Mar 18, 2024 · 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.
Sep 14, 2021 · There are currently two primary types of COVID-19 tests being used to test patients for COVID-19: molecular tests (also known as nucleic acid, RNA or PCR tests) and rapid antigen tests. The third type of testing looks for antibodies created to combat the virus. While sometimes used, these tests can only identify if you had the virus in the past.
Apr 15, 2021 · SARS-CoV-2 is the novel coronavirus that causes COVID-19. The spectrum of asymptomatic, presymptomatic, and symptomatic SARS-CoV-2 transmission presents challenges for evaluating...
How do molecular tests detect SARS-CoV-2? Types of molecular tests being developed for SARS-CoV-2. Current antigen and molecular tests with FDA EUA Status. What is needed to perform a molecular test? Molecular tests require samples—such as nasopharyngeal surface cells or sputum/saliva—that are likely to contain the virus.
