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- Questions or comments regarding this website, including reporting non-functioning links, should be directed to HANhelpdesk@cityofchicago.org or at the address listed below. We try to answer all correspondence in a timely manner but are not always able to do so.
CHICAGO DEPARTMENT OF PUBLIC HEALTH
Health Alert Network (HAN)
West Side Center for Disease Control
2160 W. Ogden Ave, Chicago, IL 60612
Please visit the Chicago Department of Public Health's Program Contact page for a full list of contact information.