Eighteen states rejected new federal vaccine recommendations as a lawsuit against Health and Human Services Secretary RFK Jr.

Flu cases are ticking down, but experts warn the U.S. isn’t out of the woods yet.

Oregon and other western states will follow vaccine recommendations from a leading medical group instead of the Centers for Disease Control and Prevention after the federal health agency on Monday ...

At least 171 measles cases have been confirmed in the U.S. so far this year, according to newly updated data from the CDC.

This week, the U.S. Centers for Disease Control and Prevention (CDC) issued new vaccination guidelines and now, some western states are telling people they're too dangerous to follow.

A fast-rising wave of influenza intensified during the week ending Saturday, Dec. 27, with the CDC’s latest FluView map showing 45 states at high or very high levels of influenza-like illness. The ...

California and other Western states reject CDC’s scaled-back vaccine guidance, pledging to follow full immunization schedule for kids.

Flu activity continues to remain elevated across the U.S. with at least 18 million cases, according to newly released data ...

Waiting rooms are filling up across the United States as a fast-moving flu wave strains clinics and hospitals, driven largely ...

At least 180,000 hospitalizations have been recorded, CDC data shows.