Nearly 3 million Americans who live in mostly rural counties lack both health care and reliable high-speed internet, ...

It’s been five years since COVID-19 arrived in the U.S., and in that time, adults age 50 and older have accounted for roughly 94 percent of the 1.2-plus million American deaths.

The number of measles cases associated with an outbreak in western Texas has grown to 259, according to new data released ...

Former CDC director Dr. Rochelle Walensky called for stronger, nationwide guidance on infant measles vaccine doses in a new opinion paper published Friday.

In a meeting last month, he reportedly told one senator that routine childhood vaccines were exposing kids to dangerous ...

The case in Stevens County, Kansas, is the first confirmed case of measles in Kansas since 2018, officials said.

Robert F. Kennedy Jr.’s failure to install a fellow vaccine critic to a key government post is testing the limits of how far the US health secretary can go to promote his public-health agenda.

RFK Jr. has claimed measles can be treated with vitamin A and that severe infection is linked to poor diet. But many experts who spoke with ABC News disagreed.

Amid a growing measles outbreak in west Texas and New Mexico, many doctors and nurses are fielding questions from patients ...

After the US slashed global aid, the South African government stated that only 17% of its HIV spending relied on US funding. But some experts argue that US health initiatives had more bang for buck ...

A century ago, measles was killing a thousand people in the U.S. every year. By 2000, vaccines had all but eliminated the ...