variant

A new COVID-19 variant called XBB.1.5 is driving a new wave of infections. But susceptibility to it is not, as some contend, being fueled by vaccines....

NEW ORLEANS (AP) — The U.S. Department of Agriculture has begun scattering millions of packets of oral rabies vaccine from helicopters and planes over...

As the seemingly (but not-for-certain) less severe omicron variant elbows out delta and political leaders across America try to stave off fresh hospit...

There’s a lot to be learned about the omicron coronavirus variant, but scientists already know enough to prescribe a rational response to the threat. ...

The Centers for Disease Control and Prevention is coming in for criticism over its most recent change of guidance on masks in the fight against COVID-...

The U.S. economic recovery is being threatened by the COVID-19 delta variant. Increasing vaccination rates is the most important thing the U.S. can do...