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 know about symptoms and vaccines.

Covid has caused serious amounts of chronic illness. Research advances may help not only people facing chronic illnesses ...

The FDA under Donald Trump and Robert F. Kennedy announced a new plan that would restrict access to covid vaccines for Americans deemed at lower risk of the disease.

Millions of "long COVID" patients coping with debilitating "brain fog" and chronic fatigue, who are looking for answers to what's at the root of their illness, received a hopeful sign Thursday.

A common mistake made by many recovering from long COVID is that they don't eat enough calories, Lily Spechler, a registered dietician based in Vermont, said.

Among the issues discussed was whether to change the coronavirus booster from a universal recommendation for everyone older than 6 months to one limited to high-risk groups.

A full five years after the coronavirus pandemic began, millions are struggling with long COVID symptoms so varied that there's no accepted checklist. Although researchers haven't devised a ...

The CIA now believes the virus responsible for the COVID-19 pandemic most likely originated from a laboratory.

It was unclear the extent to which the agency has collected new intelligence on COVID-19's origins and whether that new evidence was used to formulate the latest assessment.

“That’s actually one of the more surprising findings,” Dr. Hazen said. “There’s no signs of attenuation of that risk.” How Does Covid Cause Heart Disease?