At-home COVID-19 tests have become commonplace for many households, but knowing when exactly to take a rapid test — or when to throw old ones out — isn't always straightforward. Here's what health ...
The World Health Organization (WHO) on December 24 prequalified two rapid antigen diagnostic tests (Ag-RDTs) for SARS-CoV-2. This virus is known to have caused COVID-19. As per the WHO, these two ...
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