The findings suggest that cases in people and animals in other states have yet to be identified, the authors say.

Editor: While more than 11 million Americans are living with heart valve disease at this very moment, leading to 25,000 deaths in the U.S. each year, an estimated 3 in ...

As of Tuesday, 22 children and two adults had been infected, all of whom were unvaccinated, local officials said.

New Mexico's case-patient is from a county that borders the Texas outbreak location, though the patient hadn't traveled to ...

Public health authorities said Tuesday that an outbreak of measles in western Texas has expanded, while a new case was ...