Measles cases in West Texas are still rising two months after the outbreak began. Local public health officials say they expect the outbreak to last for at least several more months and the case number is likely an undercount.

But there's a silver lining, officials say: More people have received a measles, mumps, and rubella vaccination this year in Texas and New Mexico, which also has an outbreak, compared to last year -- even if it's not as high as they would like. And pharmacies across the U.S., especially in Texas, are seeing more demand for MMR shots.