Measles cases surpass 1,000 in Pennsylvania amid state’s largest outbreak in decades

Measles cases in Pennsylvania have exceeded 1,000 this year, with the outbreak affecting 39 counties and resulting in five deaths, including two infants too young for vaccination. Lancaster County is the hardest hit, with 391 cases. The Pennsylvania Department of Health reports that less than 1% of cases involve fully vaccinated individuals. The CDC has expressed readiness to assist if requested, as it has done in other states. Nationwide, measles cases have surpassed 3,800 in 2026, with vaccination rates declining since the COVID-19 pandemic. The CDC recommends two doses of the MMR vaccine for effective protection, with an early third dose for infants in high-risk areas. QUESTION: How might declining vaccination rates impact public health in the future?