IDPH investigating ‘cluster’ of Legionnaires’ cases in Findlay Aug 17, 2023 | Public Health, Top Stories The Department of Public Health said Wednesday they are investigating a recent “cluster” of Legionnaires’ disease during the past month in Findlay.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.