Delays in urgent CDC analyses of seasonal flu and bird flu, and the agency’s silence, will harm Americans as outbreaks escalate, doctors and public health experts warn.

Public health practitioners warn such outbreaks will become more common because of scores of laws around the United States — pending and passed — that ultimately lower vaccine rates.

The unprecedented freeze on the Morbidity and Mortality Weekly Report has sparked concerns about political meddling.

Trump has issued executive orders that may signal the end of the U.S. holding considerable power in determining the direction of global health policies and programs.

To deliver on pledges from the new Trump administration to make America healthy again, policymakers will need to close gaps in longevity among racial and ethnic groups.

Exclusive reporting reveals how the United States lost track of a virus that could cause the next pandemic.

Laborers have suffered in extreme temperatures triggered by climate change. Deaths aren’t inevitable, researchers say: Employers can save lives by providing ample water and breaks.

Cases have more than doubled in the United States within a few weeks, but researchers can’t determine why the spike is happening because surveillance for human infections has been patchy.

Misinformation coupled with a parental rights movement that shifts decision-making away from public health expertise has contributed to the lowest childhood vaccine rates in a decade.

A new study lends weight to fears that more livestock workers have gotten the bird flu than has been reported.