More than a century ago, the US learned what happens when there is no national response to a major health crisis.

Violent tornadoes ripped through parts of the U.S., wiping out schools and toppling semitractor-trailers in several states, part of a monster storm that killed at least 26 people as more severe ...

Measles is spreading across the country, as outbreaks grow in western Texas and New Mexico. We sat down with experts at the ...