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Communicable Disease Surveillance Systems

Surveillance and tracking the incidence of communicable disease is an integral part of the preventing spread of infectious disease. Public health surveillance begins with reporting and involves the collection and analysis of health data. Michigan maintains two primary web-based reporting systems. The MDCH Surveillance Systems Webpage provides more information.


The Michigan Disease Surveillance System (MDSS) is a secure web-based reporting system that provides a single point of online access for the reporting and analysis of infectious disease information. It enables public health epidemiologists to quickly identify and track emerging infections and facilitates investigation of local outbreaks. Reports are automatically routed to the correct Local Health Department for follow-up. Please see the MDSS Brochure for Health Care Providers. Contact your local office of DHD#10 to find out how you can enroll.


Emergency Department Syndromic Surveillance (EDSS) tracks the chief complaints of emergency-care patients in an effort to identify public health threats before confirmed diagnoses are available. Secure information from enrolled Hospital Emergency Departments is automatically transmitted via the system. NO changes to current registration procedures are needed and NO personal patient data is sent. Please see the EDSS Brochure for Health Care Providers  for more information.


The Outpatient Influenza-Like Illness Surveillance Network (ILINet), formerly called the sentinel network, is another surveillance tool that specifically monitors the occurrence of flu-like illness based on visits to health care provider offices and clinics. ILINet is a collaborative effort between the CDC, state and local health departments, and volunteer health care providers. The MDCH ILINet Brochure provides additional information.