The Chicago Health Alert Network (HAN) is a vital communication platform managed by the Chicago Department of Public Health (CDPH). Designed to enhance public health responses, HAN facilitates swift and secure communication among health professionals, laboratories, first responders, and local health agencies. This network plays a crucial role in supporting CDPH’s initiatives such as outbreak detection, emergency response, and day-to-day health operations.

HAN enables rapid alerts during public health emergencies, ensuring that medical providers and public health entities are informed quickly in situations such as foodborne outbreaks or bioterrorism threats. With complete ownership of its infrastructure and intellectual property, CDPH has the flexibility to adapt and enhance the system as needed, ultimately mobilizing resources efficiently to protect the community. Through programs like COVID-19 response initiatives and infection control management, HAN remains at the forefront of public health innovation and crisis management in Chicago, ensuring the safety and well-being of its residents.