When Texas officials first discovered measles cases this year, they were among the Mennonite population. Now, officials say cases are spreading to other communities.

HOUSTON — A measles outbreak in the South Plains and Panhandle regions of Texas continues to escalate, with the Texas Department of State Health Services now reporting 327 confirmed cases on Tuesday morning, March 25, since late January.

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.