Measles Returns to Southern Connecticut

Connecticut's health department today reported its first measles case since 2021. This patient is an unvaccinated resident of Fairfield County, located just northeast of New York and home to about 950,000 people.

The Connecticut Department of Public Health (DPH) reported on December 11, 2025, that this child recently travelled internationally and began showing symptoms of measles several days later.

"The single best way to protect your children and yourself from measles is to be vaccinated," said DPH Commissioner Manisha Juthani, MD, in a press release.

"One dose of measles vaccine is about 93 percent effective, while two doses are about 97 percent effective. We must ensure we continue to protect those who matter most – children and other vulnerable people – from vaccine-preventable illnesses through on-time vaccination."

According to the 2024-2025 Statewide School Immunization Survey, 98.2% of Connecticut students had received two doses of MMR by kindergarten entry. Connecticut's MMR vaccination rate is one of the highest in the U.S.

MMR vaccination services are generally offered at clinics and pharmacies in the United States.