NIH study informs antigen testing for the SARS-CoV-2 virus
National Institute of Biomedical Imaging and BioengineeringBy now, most people have used an at-home test to find out if they have COVID-19. Rapid antigen tests are a fast and convenient way for people to test themselves for SARS-CoV-2, the virus that causes COVID-19. They’re a popular alternative to the polymerase chain reaction (PCR) tests that require a laboratory to process the results.