Pennsylvania is experiencing its worst measles outbreak in 35 years, with cases reaching 1,398 as of Wednesday. The outbreak has spread beyond Amish and other Plain communities, prompting renewed vaccination efforts.
Declining childhood immunization rates have contributed to the spread. The state's kindergarten MMR vaccination rate fell to 93.2%, while Lancaster County recorded just 88%, below the 95% coverage generally needed for community immunity.
The organization's chief medical officer, Dr. Anne-Marie Derrico, said vaccine distrust that grew during the COVID-19 pandemic remains a challenge.
Nationwide, 4,588 measles cases had been recorded by October 22, including 1,327 in Pennsylvania. Health experts warn that increased indoor gatherings during winter could accelerate transmission without broader vaccination coverage.
Related Tweet:
As a historic measles outbreak hits Pennsylvania Amish country, more show openness to vaccines https://t.co/YW0Uv2u4h3
— Courthouse News (@CourthouseNews) October 30, 2026
Also Read:

