Twenty-five years after the disease was declared “eliminated” in the U.S., cases are rising again, with a Texas outbreak now spreading to New Mexico. Measles cases continue to rise in the United States nearly two and a half decades after the virus had been declared eliminated in the country.

A measles outbreak in the southwestern United States has killed two people and infected more than 200, prompting a top health agency to issue a travel warning. "With spring and summer travel season approaching in the United States,