The measles outbreak in Texas has quickly grown to 146 cases. One child has died. NBC News answers readers' questions about the disease, vaccines and government response.

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.

Gaines County in West Texas is at the heart of the ongoing measles outbreak. Non-medical vaccine exemption rates there are high.