The CDC’s announcement has reignited a longstanding debate surrounding a theory that lacks substantial scientific evidence.

There sat Robert F. Kennedy Jr., the nation’s top health official, at a Steak ‘n Shake with Fox News host Sean Hannity, raving about the fries.

In Florida, the number of kindergartners with mandatory vaccinations decreased to 88% in the 2023-24 school year from 94% in ...

Vaccines are a modern miracle, saving an estimated 154 million lives in the last half-century. Vaccine skepticism is a ...