An unvaccinated New Mexico adult who tested positive for measles has died, the second death in a growing outbreak centered along the Texas-New Mexico border, officials said Thursday. The individual did not seek medical care before death,

A second person has reportedly died of a measles infection, this time in New Mexico, as the virus continues to spread in the United States.

The New Mexico resident didn't seek medical care before dying, but the person tested positive for measles, state health officials said.