The number of measles cases exceeded 500 in Texas on Tuesday, according to the state’s health department, which made the ...

Vaccine uptake is currently too low to prevent outbreaks of measles – a highly contagious and potentially deadly virus.

Since January, 505 people have been infected in Texas and more than 90 total in neighboring New Mexico, Oklahoma and Kansas.

A public health official in Texas recently warned that the state's ongoing measles outbreak could last a year. Why are cases ...