The federal agency has not publicized how it reached its conclusions.

Some viruses mutate more rapidly than others. Learn more about why that is and what that means for your health.

The spike protein on coronavirus acts as a key to enter human cells and cause infection. mRNA vaccines use this protein to ...

The verdict? The vaccine is the safest bet by far. The very rare, short-term risk of heart inflammation caused by the vaccine ...

The new chair of the Advisory Committee on Immunization Practices said the panel plans to vote to end universal hepatitis B ...

VAERS, the Vaccine Safety Datalink, clinical investigators in the U.S. and their European counterparts detected that these vaccines did turn out to cause blood clotting. In April 2021, the FDA ...

The former officials say the agency's plan to revamp how vaccines for flu, Covid and other respiratory viruses are handled ...

Americans’ confidence in the Centers for Disease Control and Prevention has plummeted, according to a 2025 National ...

The covid-19 pandemic opened the door to once-controversial human challenge trials. Now, volunteers are willingly catching ...

FDA chief medical officer Vinay Prasad told reporters that the agency would be changing its vaccine approval process.

As vaccination rates slide, there are still ways you can protect yourself from cold, flu, RSV, and Covid this year.