Abstract:Objective To analyze the epidemiological features of Japanses encephalitis (JE) in Hebei Province during 2011-2015, and to provide a scientific basis for effectively controlling JE. Methods Descriptive epidemiological method was used to comprehensively analyze the data collected from Japanses encephalitis surveillance and management system and JE case survey. Results A total of 272 JE cases and 3 deaths were reported in Hebei Province from 2011 to 2015. The annual average morbidity rate, annual average mortality rate and fatality rate were 0.075/100,000, 0.001/100,000 and 1.10% respectively. There were 234 JE cases occurred in 2013, with the morbidity rate being 0.32/100,000. The cases were scattered but relatively distributed in the middle and south areas of Hebei Province, including Shijiazhuang (44.49%), Hengshui (19.85%) and Xingtai (11.76%). The distribution of JE cases had obvious seasonal variation and it reacheded the peak in October (accounting for 68.01%). Totally, 73.90% of the cases occurred in the crowd aged 15 years and above. The cases with history of vaccination, without history of vaccination and with unclear history of vaccination accounted for 11.74%, 31.74% and 56.52% respectively. Conclusions The overall morbidity rate of JE in Hebei Province during 2011-2015 remained at a low level. There was a morbidity peak of JE in 2013, and the proportion of JE onset of elder age group increased significantly. It is necessary to strengthen the related prevention and control measures.