A 33-foot mobile clinic parked at Observatory Park in Upper Darby this week and began giving catch-up vaccines to families ahead of the school year. Three people were vaccinated that first day. The Delaware County Health Department considers that a start, not a disappointment, because the county has not recorded a single measles case yet and is trying to keep it that way.
Pennsylvania has now confirmed 142 measles cases in 2026, the state's highest total in more than three decades, according to figures reported by the Philadelphia Inquirer. Cases are concentrated in Lancaster and Lebanon counties, with spread into Chester County, and the state of Delaware declared its own outbreak in Kent County this month.
