摘要
目的分析2011-2020年河南省间日疟流行病学特征,为制定消除疟疾后防止再传播策略和措施提供数据支撑。方法收集2011-2020年河南省间日疟疫情数据及相关病例资料,对疫情概况、地区分布、感染来源及复发情况等进行统计分析。结果2011-2020年河南省共报告间日疟病例317例,占报告疟疾病例总数的16.60%(317/1910)。其中本地感染间日疟病例171例,输入间日疟病例146例。自2012年起,全省无本地感染疟疾病例报告。输入间日疟病例以境外输入为主,占95.21%,来源国由2011年的8个扩展到24个。2011-2020年,9例间日疟病例出现复发,复发时间均小于1年,其中2例病例出现二次复发。对全省159个县(市/区)进行再传播风险分层,20个有间日疟再传播风险,139个有潜在间日疟再传播风险。结论2012年以来河南省已连续9年无本地疟疾病例,但输入性间日疟再传播风险持续存在。应做好监测和疫点处置工作,评估输入性间日疟传播风险,巩固消除疟疾成果。
Objective To analyze the epidemiological characteristics of Plasmodium vivax in Henan province from 2011 to 2020 so as to provide data support for formulating strategies and measures to prevent re-dissemination after malaria elimination.Methods The epidemiological data of P.vivax infection and related case reporting information in Henan province from 2011 to2020 were collected.The data of epidemic situation,regional distribution,infection source and recurrence were statistically analyzed.Results 317 P.vivax infected cases were reported in Henan province,accounting for 16.60%(317/1910)of the total reported cases from 2011 to 2020.Among them,there were 171 local cases of P.vivax and 146 imported cases.No local P.vivax cases have been reported since 2012.Imported P.vivax cases were mainly imported from abroad,accounting for 95.21%.The number of source countries expanded from 8 in 2011 to 24.From 2011 to 2020,9 P.vivax cases relapsed within 1 year,and 2 of them had a third attack.After counties were stratified according to the risk of re-dissemination,there were 20 counties with the risk of re transmission of P.vivax and 139 counties with the potential risk of re-transmission of P.vivax.Conclusion Since2012,there have been no local malaria cases in Henan province for 9 consecutive years,but the risk of re-dissemination caused by imported P.vivax continues to exist.It should be done well in surveillance and focus disposal,assessing the transmission risk of imported P.vivax,and consolidating the results of malaria elimination.
作者
钱丹
贺志权
刘颖
杨成运
鲁德领
QIAN Dan;HE Zhiquan;LIU Ying;YANG Chengyun;LU Deling(Henan Center for Disease Prevention and Control,Zhengzhou,Henan 450016,China)
出处
《河南预防医学杂志》
2021年第7期481-484,共4页
Henan Journal of Preventive Medicine
基金
河南省重点研发与推广项目(182102310199)
关键词
消除疟疾
间日疟
再传播风险
策略
河南省
Malaria elimination
Plasmodium vivax
Risk of re-dissemination
Strategy
Henan province
