Users of other tests, like Ellume's COVID-19 Home Test, should refer to the expiration date printed on the tests' packaging. If a test truly has expired, the results it delivers cannot be trusted ...

The U.S. approved a new COVID-19 vaccine made by Moderna late Friday but with limits on who can use it — not a replacement for the company's existing shot, but a second option.

Covid-19 certainly didn’t take a vacation this summer. Virus levels in the US have been on the rise for weeks, but it’s hard to know exactly how widely it’s spreading.

Covid-19 cases were confirmed by PCR tests, which were helpful in determining a person’s viral load. Then, investigators looked to see how well the rapid tests performed in detecting those cases.

COVID-19 is remains a public health concern five years after the start of the pandemic. What to know about vaccines, variants and more.

T he latest COVID-19 vaccine offers good protection against the currently dominant strain of the virus, according to a new report in the MMWR, a journal published by the U.S. Centers for Disease ...

With cases of COVID-19 on the rise again this winter thanks in part to the new JN.1 variant of the virus, now is probably a good time to take stock of the tests you may have at home.

Most people have put the COVID-19 pandemic behind them. Infections, vaccinations, or a combination of both have bolstered people's immunity, and while new variants continue to pop up, getting sick ...