The U.S. Department of Health and Human Services’ potential plan to alter vaccine testing has baffled health experts, who worry it could reduce protection from infectious diseases and waste time and ...

Health Secretary Robert F. Kennedy Jr. has toned down his public criticism of vaccines, under orders from the White House.

Childhood vaccines may be unsafe because few if any have been tested in placebo-controlled trials before being approved. But that claim misunderstands the vaccine safety testing process and takes ...

Amid a record number of U.S. measles cases and falling childhood vaccination rates nationwide, 57% of U.S. parents with minor children have high confidence that childhood vaccines are effective at ...

As a federal advisory panel met Monday to review how the United States monitors vaccine safety, the discussion in Washington echoed a debate unfolding in pediatric offices and living rooms across ...