October 1, 2025
Stories this photo appears in:
Cook County Confirms Another Measles Case
Cook County Department of Public Health (CCDPH) has confirmed the third suburban Cook County measles case this year. The case was identified in a suburban Cook County adult whose vaccination status is unknown. Public health officials believe the case was acquired from exposure to the last reported measles case announced on 9/16/2025. CCDPH is working to identify and notify people who may have been exposed to this new case.