Study on indicator system for early-warning of Japanese encephalitis

Objective To develop the indicator system for early warning of Japanese encephalitis. Methods The literature review and the experts meeting method were used to set the initial frame work and indicators first, then Delphi method was used to screen indicators and determine the weighting coefficient. Results Five first-class and 10 second-class indicators involved in immune status of population to Japanese encephalitis infection, transmission vector, reservoir host, social environment, and case-related indicators were set up for the early warning of Japanese encephalitis. Conclusion The indicator system for early warning of Japanese encephalitis was set up in China, but the reliability and validity need to be evaluated by using historical epidemic data of Japanese encephalitis.