Texas reported 90 cases this week, while New Mexico reported nine. A majority of the cases have been in a Texas county where vaccination rates have lagged behind the rest of the state.

The measles outbreak in West Texas has grown to 58 cases as of Tuesday. Eight people in neighboring eastern New Mexico also have been diagnosed with the highly contagious disease.

In New Mexico, officials said nine people had become sick in Lea County, along the state's eastern border with Texas. Measles is highly contagious and can be deadly. The outbreaks come amid a rise in US anti-vaccine sentiment, including towards the measles, mumps and rubella (MMR) jab that is typically given during childhood.