Public health officials are "in desperate need of clarity" on electronic cigarettes to help guide policies, the nation's newly appointed surgeon general said Tuesday.
There may be no such thing as a free lunch, but the overweight in Mexico City will be glad to hear there is such a thing as a free subway ride.
A measles outbreak that originated at Disneyland has grown to 87 cases.
Health officials are now focused on ending the biggest-ever Ebola outbreak rather than just slowing the deadly virus' spread, the World Health Organization said Thursday.
A measles outbreak in Arizona that originated at California's Disney parks is at risk of dramatically increasing in size as health officials keep tabs on 1,000 people in the state's most populous areas.
Fewer California parents opted out of vaccinations for their children entering kindergarten last year following the adoption of a law that makes it harder to go without the shots, state figures show.