The purpose of the Surveillance System is to aid in the early detection of SARS (Severe Acute Respiratory Syndrome) and other airborne/close contact nosocomial infections within NHG (National Healthcare Group). In order to meet the objectives, the system was designed to have 3 modules: Staff Surveillance, Inpatient Surveillance and Reports. The Staff Surveillance module captures staff's MC (medical certification). The Inpatient Surveillance module captures inpatients' onset of syndromes (e.g. pneumonia), which are of interest for a given period .Reports will provide a summary information of the Staff Surveillance and Inpatient Surveillance basing on report criteria.