A highly transmissible new COVID-19 variant called NB.1.8.1, aka "Nimbus," is spreading in the United States, CDC data show.

The World Health Organization is monitoring a new mutation of the virus that’s already caused a surge in Asia.

Medically reviewed by Anju Goel, MD Up to 20% of people who get COVID-19 experience skin and nail changes. COVID nails is a ...

Several mRNA vaccine trials found a debilitating side effect, and now the Trump administration is cutting funding for more ...

The report about lower rates comes as measles has spread among unvaccinated U.S. kids and adults, including an Anchorage child this month.

But, like a surprising amount of other viruses, the coronavirus can also lead to annoying, itchy and even painful skin rashes. When you see a rash as part of a virus, you're not really seeing the ...