Coronavirus Crisis

Beyond behavior, a person’s genetics, T-cells and the effects of inflammatory conditions like allergies could influence their risk — but only to a point.

The White House announced Thursday that Biden, 79, has been experiencing "mild symptoms" since testing positive.

“The exhaustion kept growing and growing,” one woman with long COVID said.

A green light from the CDC will pave the way for 3.2 million doses of the Novavax vaccine to be distributed in the United States.

Even those who had COVID and fully recovered are not safe from disabling long term symptoms, a patient advocate testified.

Researchers say that informing people their periods can be impacted "is incredibly important to make sure people are prepared and not surprised."

Experts explain why reinfections happen and what you can do to prevent them.

Novavax’s vaccine uses an older technology found in other widely used shots, offering people an alternative to the mRNA-based Pfizer and Moderna vaccines.

The symptoms to watch out for — and when to take a test.

CDC Director Dr. Rochelle Walensky’s final approval, which could come within hours, will be a milestone in the U.S. vaccination campaign.