关键词: 流行性乙型脑炎, 流行病学分析, 控制策略

Abstract: Objective To learn the epidemiology characteristic of Japanese encephalitis(JE) in Chonqing in 2007 and explore new control method in high-risk areas.Methods Describe and analyze the epidemiology characteristic of JE in Chongqing based on the data of JE cases national reporting system and the serological detection results by cross sectional analysis method.Results 344 cases were reported in Chongqing and the incidence rate was 1.09 per 100 000 persons.It was a sporadic distribution and most cases were reported from July to August which showed a seasonal characteristic.The PCR results of swine serum samples indicated that half samples turned to be positive in late July and totally positive in late August.The natural infection rate of swine by JEV was low.Conclusion The prevalence of JE was lower in 2007,however,it was essential and necessary that we should take effectively integrated measures to control outbreak and prevalence of JE,such as strengthening routine immunization and supplementary immunization for children aged below 10,developing mosquito surveillance and serological test of common people and pigs,and improving the reporting and management system of JE.