Advocates came to Beacon Hill recently to speak for and against two bills that would require more children to be vaccinated.

The CDC’s ACIP is set to vote on the issue of thimerosal in flu vaccines. Here's what to know about what it is, its safety, and what the science says about it.

Critics say Kennedy is ordering a review of childhood vaccines to stoke skepticism, risking the spread of disease.

Since Robert F. Kennedy Jr. fired the members of the CDC’s esteemed vaccine advisory panel, medical organizations and experts are looking for alternatives.

From a lone clinic in Texas to an entire school district in North Dakota, the virus is upending daily life and revealing a ...