COVID is on the rise again. The uptick was first registered in Northern California, but has also started being seen in ...

COVID levels in Bay Area now exceed this past winter’s peak • New “Nimbus” subvariant driving 55% spike in statewide ...

COVID-19 cases are rising in 26 states. Is the US in a summer wave? What to know about COVID trends and symptoms of the new ...

A new COVID variant, known as NB.1.8.1, has made landfall in the United States, and it's more transmissible than other ...

About 82% of lives saved were among people who got vaccinated prior to their infection with COVID, researchers said.

The rise in COVID-19 infections comes as providers wrestle with how to navigate shifted federal vaccine recommendations.

A negative result from a COVID test in a medical setting is more accurate than a negative result from an at-home test, ...

Theresa Gaffney is the lead Morning Rounds writer and reports on health care, new research, and public policy, with a ...

Virologists describe Nimbus as a “slightly upgraded” version of its predecessor, with a nasty signature some are calling ...