At least 124 cases of measles have been reported in Texas since late January — marking the largest outbreak in the state in close to 30 years. The dozens of reported cases have mostly affected children,

The number of people with measles in Texas increased to 146. And Eastern New Mexico is also dealing with 9 cases. The MMR vaccine is highly effective and kids who get it will receive two doses. But what about adults?

Oklahoma has yet to record a case of measles, but cases are continuing to spread along the Texas border and Panhandle regions.