12/12/2023 0 Comments Bridge diagnostics covid resultsThis should be considered when choosing whether to test for antibodies originating from past infection versus those from vaccination. Detection of anti-nucleocapsid antibody indicates SARS-CoV-2 infection, while anti-spike protein antibody may be induced by COVID-19 vaccination or by SARS-CoV-2 infection. Antibody tests detect specific antibodies that target different parts (nucleocapsid or spike protein) of the virus. Antibody testing is primarily used for public health surveillance and epidemiologic purposes. Antibody testing does not diagnose current infection. Īntibody (or serology) tests are used to test for the presence of antibodies from previous infection or vaccination and can aid in fulfilling the case definition for multisystem inflammatory syndrome in children (MIS-C) and adults (MIS-A) 2. Negative antigen test results should be repeated following FDA guidance. These results represent a snapshot of the time around specimen collection and could change if the same test was performed again in one or more days. Negative viral test results mean the test did not detect the virus, but this doesn’t rule out that you could have an infection. Positive viral test results indicate current, or sometimes recent, infection and the person with COVID-19 should follow CDC recommendations for isolation. Please refer to each test’s Instructions for Use (IFU ) for specific interpretation. These tests’ results may be presumptive and require confirmation by NAAT.
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