Abstract:

Objective To analyze the reported incidence of Japanese Encephalitis (JE) in Chengdu from 2005 to 2013, and explore the prevention measures for JE. Methods The clinical data of JE in Chengdu from 2005 to 2013 were analyzed by Excel software. Results 124 cases of JE were reported in Chengdu from 2005
to 2013 including 3 cases of death. The cases mainly distributed in the districts of Jintang, Jinniu, Pixian and Shuangliu. The male to female ratio was 1.70∶1. The age of patients varied from 6 months to 61 years old and most of the cases were from 3 to 5 years old (41.94%). However, 69.44% of the patients had no or unknown history of immunization. The proportion of Culex tritaeniorhynchus was 4.27% showed by mosquito density monitoring. Conclusion The incidence of JE in Chengdu showed a sporadic in a low level trend in recent years and the vaccine should be prepared to replant after inspection work. In particular, it was important to strengthen immunization in rural and remote areas and densely populated areas of floating population, improve JE vaccine coverage and reduce the blank immunization. Meanwhile, health education, mosquito control and other measures should also be conducted to decrease the incidence of JE.

Key words: Japanese Encephalitis, Epidemic Feature, Chengdu