Adding a throat swab specimen to a nasal specimen significantly increased sensitivity of COVID-19 rapid antigen tests, whether self-collected or collected by a healthcare worker, a randomized clinical ...

Add Yahoo as a preferred source to see more of our stories on Google. By now, most of us know the basics of taking a COVID-19 test at home. With cases, test positivity and hospitalizations due to ...

In a study involving nearly 1,000 patients seen at a Baltimore field hospital during a five-month period in 2022, researchers at Johns Hopkins Medicine, the University of Maryland School of Medicine, ...

Findings from a new study led by UMass Chan Medical School researchers are the basis for a safety communication issued by the U.S. Food and Drug Administration (FDA) Aug. 11 regarding serial use of at ...

Testing may help outpatient clinicians better manage lower respiratory tract infections ...

A false positive result is possible with a rapid COVID-19 test. It happens when a person does not have COVID-19 but still tests positive for the disease. People can use a rapid COVID-19 test at home ...

More than two years after the World Health Organization (WHO) declared an end to the emergency phase of the Covid-19 pandemic, the virus continues to circulate globally. While current data suggest ...

Nathaniel Hafer receives funding from the National Institutes of Health and the National Science Foundation. Anuradha Rao receives funding from the National Institute of Biomedical Imaging and ...

The World Health Organization (WHO) said on December 24, 2025, that it has prequalified two rapid antigen diagnostic tests (Ag-RDTs) for SARS-CoV-2, the virus that causes COVID-19. According to WHO, ...