Viral mismatch between circulating strains and vaccine may have weighed down effectiveness ...

FDA advisers recommend fall flu shot changes to include the new subclade K H3N2 variant for the 2026-27 season, improving vaccine relevance.

White House officials are trying to get him — and his Make America Healthy Again allies — to stop. Some Trump administration officials are eager to distance themselves from a topic they see as ...

For measles specifically, infants between six months to less than 12 months in age should receive one dose of the vaccine prior to travelling. Those children will still need additional doses at 12 and ...