Comparisons of etiologic agents, vehicles, significant ingredients, place of mishandling, and method of food processing or preparation with specific contributory factors are particularly useful in identifying specific hazards, specifying operations that are candidates for designation as critical control points, and assessing risks. After foodborne disease surveillance data have been received, tabulated, and appropriately interpreted, summary information needs to be disseminated in a timely fashion to those who can use it for preventing foodborne diseases. This action should be taken at all levels of the surveillance network. Surveillance information is used to determine the need for food safety actions, which involves planning and implementing programs and assessing the effectiveness of the actions taken. Uses of the data include (a) developing new policies and procedures and revising priorities, (b) evaluating effectiveness of programs, (c) justifying food safety program budgets based on estimated costs offoodborne illness, (d) modifying regulations so that they relate to contemporary foodborne disease issues, (e) conducting hazard analyses and risk assessments and instituting programs oriented to hazard analysis critical control points (HACCP), (f) starting or improving a public information campaign and educating the public, (g) notifying and training food industry personnel, (h) training agency staff and public health students and professionals, and (i) identifying new problems and research needs from the data. Implementing these approaches will necessitate changes in traditional food safety activities. This four-part series of articles concludes with recommendations to be considered by local, state/provincial, national, and international agencies responsible for foodborne disease surveillance.
National molecular tracing network for foodborne disease surveillance in China
