Chicago up to 42 monkeypox cases, says Arwady Ryan Voyles 2 years ago The number of monkeypox cases in Chicago is now at 42, Chicago Department of Public Health Commissioner Dr. Allison Arwady said Monday.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.