Epidemiology of Japanese encephalitis in China,2019-2022
Objective To analyze epidemiological characteristics of Japanese encephalitis(JE)in China.Methods We obtained data on JE cases that were reported to the China Disease Control and Prevention Information System during 2019-2022 and conducted descriptive epidemiological analyses.Results A total of 1 057 JE cases were reported during 2019-2022 in China,for an average annual incidence of 0.188 cases per million population.Annual incidence per million declined from 0.298(416 cases)in 2019 to 0.104(146 cases)in 2022;0-14-,15-44-,and≥45-year-olds accounted for 45.03％,22.14％,and 32.83％of reported cases,with average annual incidences of 0.489,0.103,and 0.183 per million.The proportion of cases among≥45-year-olds increased from 30.29％in 2019 to 45.21％in 2022.Farmers,students,and living-scattered children accounted for 33.30％,32.54％,and 14.29％of cases.Conclusions JE incidence declined during 2019-2022 in China.We suggest maintaining high JE vaccine coverage for age-eligible children and strengthening JE prevention and control in adults and high-risk populations.
Japanese encephalitisEpidemiological characteristics
NETL
NSTL
万方数据
