A measles outbreak in Texas has grown to 90 cases, mostly among unvaccinated children, state health data published Friday shows.

With the ongoing measles outbreak in Texas, doctors are warning people of the importance of vaccinating their children.Dr. Joshua Williams, a pediatrician at Denver Health, says that while Denver's vaccination rates perform well compared to the state average,

Some private schools have shut down because of a rapidly escalating measles outbreak in West Texas. Local health departments are overstretched, pausing other important work as they race to limit the spread of this highly contagious virus.