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Test for past infection
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May 05, 2020
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Description:Antibody blood tests, also called antibody tests, check your blood by looking for antibodies, which show if you had a previous infection with the virus. Depending on when someone was infected and the timing of the test, the test may not find antibodies in someone with a current COVID-19 infection. Antibodies are proteins that help fight off infections. Antibody tests should not be used to diagnose someone as being currently sick with COVID-19. To see if you have a current infection, you need a viral test, which checks respiratory samples, such as a swab from inside your nose.
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Content Notes:How to get an antibody test -- CDC’s work in antibody testing.
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[PDF-78.26 KB]
Supporting Files
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