Local Health Departments Confront a Growing Measles Threat
U.S. measles cases have surged since 2025, and 2026 numbers are on pace to exceed recent records. Low vaccination rates are fueling outbreaks, including a major concentration in Pennsylvania's Amish and Mennonite communities. A science communication expert offers local health departments guidance on building trust and controlling the spread.
U.S. measles activity has climbed sharply since 2025. The 2026 count is approaching twice the prior year's record, and this year alone has produced 42 linked outbreaks. Hundreds of cases have appeared in Texas, Wisconsin, Utah, and South Carolina.
Pennsylvania has the largest outbreak, centered among Amish and Mennonite residents in Lancaster County, where immunization coverage is low. Statewide, measles has reached 30 counties, and nearly all infected people were unvaccinated. The nation's 2000 elimination status is now at risk.
Measles resurgence could affect unvaccinated children and communities with lower immunization rates most directly, while local health departments may face pressure to rebuild trust and contain transmission. If elimination status is lost, broader public health gains may be undermined, and families in outbreak areas could encounter practical disruptions. Officials' communication choices may shape whether residents accept vaccination guidance or remain hesitant.