Centers for Disease Control and Prevention

Fresh, slivered onions on the restaurant chain’s Quarter Pounders “are the likely source” of the outbreak, the agency said Wednesday.

U.S. health officials are recommending that people 50 and older get a shot against bacteria that can cause pneumonia and other dangerous illnesses.

Ten people likely suffered from trichinellosis, a rare parasitic disease linked to wild game meat, according to a new report from the Centers for Disease Control and Prevention.

U.S. suicides last year remained at about the highest level in the nation’s history, according to the Centers for Disease Control and Prevention.

Fewer U.S. teens are vaping this year than at any point in the last decade, government officials reported on Thursday.

Diseases spread by mosquitoes are in the spotlight again because of recent U.S. illnesses. Here’s a look at some common — and not so common — mosquito-borne diseases.

A U.S. government report concluded that fluoride in drinking water at twice the recommended limit is linked with lower IQ in children.

At least 21 states have very high levels of Covid, the data shows. Yet, with fewer people testing for Covid, experts say it’s more important than ever to pay attention to symptoms.