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 ...

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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 ...

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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 ...

A study led by Osaka University recently found that the sensitivity of rapid antigen tests (RATs) for the Omicron variant of COVID-19 when compared with polymerase chain reaction (PCR) tests was 0.63 ...

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 ...

The FDA has extended the shelf life for some COVID-19 tests. Now that allergy season is here, many are finding themselves with symptoms asking: Is it allergies or a cold? COVID? Something else? Since ...

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 ...