Measles is a highly contagious disease. Here's what you should know about how to protect yourself against measles, as well as what's happening in Texas and New Mexico.

A measles outbreak in Texas and New Mexico is worsening, with 58 cases in Texas and 8 in New Mexico. Officials are urging vaccinations as the virus spreads in undervaccinated communities.

Two separate outbreaks of measles in the U.S. Southwest have now accounted for nearly 100 confirmed cases and hospitalized 16 people.

A measles outbreak in Texas’ South Plains neared 100 cases Friday, according to the Texas Department of State Health Services, which warned more cases of the highly contagious virus are likely to pop up in outbreak areas.

An ongoing measles outbreak that began in one of Texas' least vaccinated counties has mushroomed to 90 cases across a cluster of seven counties in the state, according to an update by the Texas Department of State Health Services on Friday.