A contagious new COVID-19 variant called NB.1.8.1, aka "Nimbus," is now dominant in the United States, CDC data show. What to ...

Doctors were able to resuscitate him. Then, they got to work trying to figure out what was wrong. The man told them that for ...

A new strain of COVID-19, XFG, is spreading rapidly across the world, including in the United States. Anecdotally, people who ...

Matters of the heart are truly sensitive, especially when its electrical system is disrupted. This is also called an ...