CDPH reports drop in new AIDS, HIV diagnosis Aug 21, 2026 | Population Health, Top Stories New HIV and AIDS diagnoses in Chicago last year fell to levels not seen in over 30 years, the city’s Department of Public Health said Thursday.To access this content, you must purchase 1 Year Health News Illinois Subscription or 1 Year Group Subscription - Up to 5 Users, or log in if you are a member.