February 2022

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Understanding COVID-19 PCR Testing

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Testing is important to stop the spread of COVID-19. PCR tests for COVID-19 are very accurate. They make many copies of the virus’ genetic material in a sample. That lets the test detect very low levels of virus.

Learn more about how PCR testing works.

Visit the website:
www.genome.gov/about-genomics/fact-sheets/Understanding-COVID-19-PCR-Testing