A highly contagious illness that can cause pneumonia, swelling of the brain, miscarriage, and even death, has now been confirmed outside of New York City.

A child in Suffolk County has tested positive for measles, health officials say. The child is under the age of 5 and is unvaccinated, according to the Suffolk County Department of Health Services. Officials say the child did not attend day care or school while infectious.

A child under 5 years old from Suffolk County has tested positive for measles, marking the first case on Long Island in 2025.

Health officials in Vermont say they have confirmed a case of measles in a school-aged child in Lamoille County who recently traveled internationally with their family. In a statement on Tuesday, the Vermont Department of Health said the child has been isolated while they are contagious and the “risk to the public is believed to be low.

A child under 5 years old on Long Island has been diagnosed with measles, marking the first case outside of New York City in 2025, health officials announced Tuesday, March 11. The case in Suffolk County,