Measles immunization rates for Kentucky kindergarteners have fallen from 93% in the 2019-2020 school year to 86.9% in 2024-2025.

Kentucky is in the throes of a measles outbreak. Health officials in the state have confirmed that an outbreak of the highly contagious respiratory virus has spread to Fayette County after beginning ...

There are three other large outbreaks in North America. The longest, in Ontario, Canada, has resulted in 2,212 cases from mid ...