Health officials are deeply concerned after one child died from the highly contagious disease, and the virus has reached four states across the U.S.

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.

Cases of the highly contagious disease are expected to rise and potentially spread to other states where vaccination rates are low.