While President Donald Trump is pushing to split the MMR vaccine into three shots, experts say there’s no scientific reason ...

The most important vaccines in history have prevented the spread of debilitating, infectious diseases like polio, smallpox, ...

A vaccine is a part of a virus that is used to build immunity and prevent the spread of disease. Here's five of the most ...

Medical experts and vaccine maker Merck reject HHS Deputy Secretary Jim O'Neill's suggestion to split the MMR vaccine into ...

A new working group of outside advisers to the US Centers for Disease Control and Prevention will convene to assess the safety, effectiveness and timing of the shots children and adolescents get, as ...

Amid confusion over this year's updated COVID-19 vaccines, we explain what's different this year and who experts say should ...