This week, two new leaders at the US Food and Drug Administration announced plans to limit access to covid vaccines, arguing ...

Historically, almost everyone has been eligible for Covid vaccines; the C.D.C. recommended the most recent vaccine for all ...

Infectious disease experts say mRNA vaccines have been studied for decades, they are safe and effective, and were instrumental in saving lives during the COVID pandemic.

It may not be the mythical fountain of youth, but the strength of the body's immune system, or immune resilience, could hold ...

The FDA will encourage new clinical trials on the widely used vaccines before approving them for children and healthy adults.

The Trump administration revoked Harvard University’s ability to enroll international students in its escalating battle with the Ivy League school, saying thousands of current students must transfer t ...