First Day of School in Waterbury and Hartford: Latest CT News

Connecticut health officials confirmed a third measles case, involving an adult resident from Hartford County who was hospitalized after traveling internationally, according to the Connecticut Department of Public Health.

The patient tested positive for the virus on Monday after experiencing a high fever and developing a rash, state officials said. According to the state Department of Public Health, the individual’s vaccination status remains unknown following their return from an undisclosed foreign country.

This third infection marks the highest number of measles cases recorded in Connecticut in a single year since 2019. State Health Commissioner Manisha Juthani noted that the incident underscores ongoing risks for unvaccinated travelers visiting regions where the virus still circulates widely.

Statewide Vaccination Rates and Prior Cases

Previous cases reported earlier in the year involved contrasting vaccination backgrounds, according to state health data. The first patient was unvaccinated and contracted the illness during international travel, while the second patient was vaccinated but experienced exposure to a confirmed case.

Data from the 2025–2026 Statewide School Immunization Survey shows that the state holds the second-highest rate in the nation for kindergarteners receiving two doses of the MMR vaccine, reaching 98.6%.

State health guidelines recommend that residents receive two doses of the measles, mumps, and rubella vaccine, with the first dose administered between 12 and 15 months of age and the second between ages 4 and 6.

National Trends and Transmission Risks

The local diagnoses align with a broader national surge in measles cases across the United States. According to figures from the U.S. Centers for Disease Control and Prevention, the nation recorded 2,777 measles cases as of August 20, marking the highest annual total since 1991.

Federal health data indicates that 94% of those nationwide cases stem from defined outbreaks, and approximately 93% of patients were either unvaccinated or possessed an unknown vaccination history.

Health officials emphasize that measles is exceptionally contagious, noting that the virus spreads rapidly through the air when an infected individual coughs or sneezes. According to the CDC, roughly 9 out of 10 unvaccinated individuals who encounter an infected person will contract the virus. Furthermore, about 1 in 5 unvaccinated patients who fall ill require hospitalization, frequently developing a rash and fevers reaching up to 104 degrees, with children under the age of 5 facing the highest risk of severe complications.