COVID-19 activity is rising in much of the country. Data shows overall respiratory virus spread is very low in the U.S. But ...

A new strain of COVID-19 known as Stratus that is spreading worldwide has been detected in Arizona.

Beach trips and heat waves aren’t the only things rising this summer. COVID-19 signals are climbing nationwide, and two Omicron offshoots appear to be leading the charge. The Centers for Disease ...