The Illinois Department of Public Health (IDPH) is reporting the first confirmed measles case of 2025 in Illinois. The case, involving an adult in far southern Illinois, was confirmed through lab testing. This is the only case IDPH is aware of and this is not considered an outbreak at this time. IDPH will update the public should there be any notable developments. IDPH is working with local health officials to identify all potential exposure locations. Right now the risk to the public is low.