Philadelphia health officials reported a measles case last week, marking the second known Pennsylvania infection this year after an earlier case was reported in Montgomery County. And though Western Pennsylvania has not reported any measles infections, the Allegheny County Health Department is urging residents to stay vigilant.
“We have alerted all of the providers in the area to be on the lookout for measles because there are a lot more cases in the U.S. this year than there have been in recent years,” said Dr. Kristen Mertz, an epidemiologist at the Allegheny County Health Department.
So far in 2025, there have been at least 301 confirmed cases reported in the United States, according to the Centers for Disease Control and Prevention. Most infections tie back to outbreaks in West Texas and New Mexico, where more than 280 cases have been reported. Two unvaccinated people — one in Texas and one in New Mexico — have died from measles-related causes…