Nathaniel Hafer receives funding from the National Institutes of Health via awards UL1TR001453 and U54HL143541. Apurv Soni receives funding from the National Institutes of Health via awards ...

The availability of rapid antigen tests has significantly advanced efforts to contain the spread of COVID-19, but every new variant of concern raises questions about whether diagnostic tests will ...

This is because on the first day you perform an at-home test, it might not be able to detect low levels of the virus and you may get a false negative, even if you’re symptomatic, says Dr. Sharon ...

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Mahmoud Illean / AP As the COVID-19 pandemic enters its fourth year, a negative result on a little plastic at-home test feels a bit less comforting than it once did. Still, you dutifully swab your ...

With access to testing limited and without other ways of measuring likely infection rates, New Zealand’s confirmed COVID cases are likely to be just a fraction of the total. Calculating your risk of ...

WORCESTER – Anyone who gets a negative result for COVID-19 from an at-home rapid antigen test shouldn't assume they're not infected, and should keep testing, according to a safety recommendation ...

Taking a COVID-19 test at home seems simple enough: If you get a line, you're positive for the coronavirus. But what if your results aren't so obvious? For instance, if you only get a very faint line ...

You swabbed the inside of your nose and performed the at-home rapid antigen test for COVID-19 and thankfully, it was negative. Hold on. Do the test again, says the U.S. Food and Drug Administration, ...

The United States is once again watching coronavirus cases and hospitalizations rise as summertime nears. Nearly half of Americans – 45 percent – are living in communities with medium or high ...