disease surveillance system Salwa Ali Reference: Strengthening National Public Health Preparedness and Response to Chemical, Biological, and Radiological Agent Threats. Edited by C.E. Cummings and E. Stikova. IOS Press, 2007. P.25. A surveillance system is an information loop or cycle that involves health care proviers, public health agencies, and the public. A well functioning disease surveillance system includes case detection and registration, case confirmation, data reporting, data analysis, outbreak investigation, response and preparedness activities, feedback, and communication. Health Surveillance