Find out about the COVID-19 vaccines, the benefits of COVID-19 vaccination and the possible side effects.

The federal government is cutting $500 million in research money for development of mRNA vaccines, which were widely used against the COVID-19 virus. Health Secretary Robert F. Kennedy Jr. said in a ...

We asked experts about how the technology works, its safety and its potential in medicine. By Nina Agrawal Health Secretary Robert F. Kennedy Jr. has repeatedly questioned the safety of mRNA vaccines ...

Two of the vaccines we have for COVID-19 have the distinction of being the first mRNA vaccines to see widespread use in ...

Vaccination campaigns have nearly eradicated some of the most deadly and transmissible diseases. However, against a backdrop of a rising tide of vaccine hesitancy, and U.S. leaders pulling global ...

A 4-year-old boy picks out a bandage before getting vaccinated in San Jose, California, in 2022. (Jane Tyska/Digital First Media/The Mercury News via Getty Images) How we did this Pew Research Center ...

Some countries without school vaccination requirements have vaccination rates similar to the United States, where vaccines are generally required to attend school. Research shows an association ...