Two unvaccinated residents of Lancaster County, Pennsylvania, have died from measles, marking the first US measles deaths of 2026 and the state's first in 35 years. The deaths come amid a nationwide surge, with nearly 2,800 cases reported this year, the highest since 1991 . Pennsylvania has confirmed 393 cases across 28 counties, with about half in Lancaster County .
Measles was declared eliminated in the US in 2000, but vaccination rates have fallen below the 95% threshold needed for herd immunity. In Lancaster County, only about 88% of kindergartners are fully vaccinated . Nationally, kindergarten vaccination coverage has declined, and non-medical exemptions reached a record high of 4.2% . Health officials emphasize that the MMR vaccine is 97% effective with two doses .
Governor Josh Shapiro has criticized Health Secretary Robert F. Kennedy Jr.'s anti-vaccine rhetoric, while Kennedy has blamed the Biden administration for declining vaccination rates and even suggested the deaths might be fabricated . Shapiro said he turned down Kennedy's offer of help, telling him his actions are having a negative impact .
International health officials will meet in November to determine if the US has lost its measles elimination status . The CDC data shows the largest one-year increase in vaccine exemption requests ever recorded .
