But under PAHO's definition of elimination, borders matter. If, for example, the chain of measles that started in the U.S.

Temperatures are not expected to go above freezing until at least midday Tuesday. But is this weekend one of the coldest ever ...

With the nation's measles-free status in doubt, this is what local public health officials are doing to bolster immunization ...

In 2011, McAllen, Texas was labeled America’s most obese city, but residents say the problem goes far beyond personal choices. This video looks at how ultra-processed food, poverty, and nonstop ...