The U.S. Food and Drug Administration (FDA) issued a safety communication on Thursday advising people to perform repeat, or serial, testing following a negative result on any at-home COVID-19 antigen ...
A prospective cohort study has found that repeat testing in 48-hour intervals with a rapid antigen test (Ag-RDT) may be required to rule out SARS-CoV-2 infection. This means that people testing for ...
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