The CDC warns samples of the bird flu virus show signs of mutations that could make it more transmissible to humans. The CDC ...

The agency, in its latest update released Thursday, said the mutations were not found in samples taken from wild birds, suggesting the virus changed over the course of the patient’s infection.

Northern Kentucky health officials say the person was exposed to rabies and received medical treatment in Kentucky and Ohio ...

Whooping cough cases in the United States have surged to the highest levels in a decade, with no sign of a slowdown, according to the CDC. The federal health agency reports that cases this year are ...