Communicable Disease Information

The Disease Control division at the Chicago Department of Public Health works to protect the public from infectious diseases including vaccine-preventable diseases, Tuberculosis, food-borne illness and other communicable diseases.

The Chicago Department of Public Health (CDPH) performs surveillance to detect trends and assess the public health impact of communicable diseases, monitors the occurrence of infectious diseases and develops strategies for preventing and controlling disease. In addition, CDPH conducts communicable disease investigations, implements control measures, and responds to Public Health emergencies. CDPH educates individuals, communities, health care providers, the media and policy makers to enhance disease prevention and control efforts.  Learn more about communicable disease services.

CDPH conducts surveillance for more than 70 diseases and disease syndromes. Information on reportable diseases, including the time frame for reporting, method of reporting and laboratory reporting, is available in the Control of Communicable Disease Illinois code. 

Mandated reporters such as health care providers, hospitals and laboratories, by law must report suspected or confirmed cases of certain infectious diseases electronically through Illinois’ National Electronic Disease Surveillance System (I-NEDSS). Additional information about Illinois control of communicable diseases administrative code may be found here.
CDPH investigates clusters of disease and recommends control measures:

  • Report clusters of illness to: Loretta Miller, Regional Communicable Disease Investigation Supervisor, 312-746-5377,
  • Foodborne illness may be reported online using 311 City Services
  • Clusters of illness in school settings may be reported to: Margaret Okodua, Public Health Nurse, 312-746-9328.

CDPH consults with the medical community on communicable and infectious disease issues:

For consultation with a Medical Director after hours, call 311 within the City or 312-744-5000 outside of Chicago to reach a physician.

For information about specimen submission for testing performed by public health laboratories, contact CDPH Lab Liaison: Massimo Pacilli; 312-746-6225,

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