More than two dozen states have confirmed cases of a new COVID variant, with experts saying the mutation poses risks to people who were previously infected or vaccinated. And, it was largely ...

COVID-19 numbers are rising again, and new virus variants are circulating. But how significant is the threat in fall 2026? Who should get vaccinated, what protective measures are sensible–and what has ...

Add Yahoo as a preferred source to see more of our stories on Google. The Centers for Disease Control and Prevention has detected a new COVID‑19 strain, raising concerns among experts about a possible ...

A newly identified COVID-19 variant is drawing attention from health officials after being detected in the U.S., though early evidence suggests it is not yet driving a surge in cases or severe illness ...

A deadly hantavirus outbreak on a cruise ship has revived bitter memories of when COVID-19 first emerged, but health experts have emphasized the two viruses are very different—and have sought to ...

Repeated infections are “a fact of life” at this point, experts say. But they warn there is no such thing as a risk-free case ...