Trump's pick for health secretary has a record of attacking vaccines. In fact he's even taken direct aim at bird flu shots. Some scientists fear this doesn't bode well in case of a crisis.

Rocky Mountain Spotted Fever, the deadliest tick-borne disease in the U.S., is a big problem on tribal lands in the Southwest ...

As fire crews and air tankers work to block the wildfires' explosive growth, images of red clouds of fire retardant falling ...