IDPH Confirms First Measles Case in Illinois

(Undated) — The Illinois Department of Public Health is reporting the first confirmed measles case of 2025 in Illinois. They say the case, involving an adult in “far southern Illinois,” was confirmed through laboratory testing on April 23rd. The IDPH says this is the only case they are aware of in Illinois, and this is not considered an outbreak. They say the risk of community transmission for the general public in Illinois remains low and that they are working with local health officials to identify all potential exposure locations. The clinic in southern Illinois where the patient sought care is working to identify any possible exposed patients and check the immune status of those individuals.