Objective: To analyze the epidemiological characteristics of malaria prevalence in Danyang City from 2004 to 2015, so as to provide the evidence for formulating the strategy of prevention and control of malaria.
Methods: The data of malaria serum tests, the reported malaria cases from the Internet Reporting System, and the epidemiological case survey from 2004 to 2015 as well as the mosquito monitoring data from 2008 to 2015 were collected and analyzed.
Results: From 2004 to 2015, 58 malaria cases were reported in Danyang City, with an average annual incidence rate of 0.6/105. Among the cases reported, vivax malaria accounted for 65.52% (38/58), falciparum malaria accounted for 5.17% (3/58), oval malaria accounted for 1.72% (1/58), and unclassified subtype accounted for 27.59% (16/58). The local infection cases accounted for 31.03% (18/ 58), and the imported cases accounted for 68.97% (40/58). There were no local infections since 2011. Anopheles sinensis, the only malaria vector in Danyang City, was still prevalent, but its density was low.
Conclusions: Imported malaria poses a serious threat to the malaria elimination achievements in Danyang City, and the surveillance and disposal of imported malaria need to be strengthened.
[摘要]目的 分析2004–2015年丹阳市疟疾流行特征, 为科学制定防治策略提供依据。 方法 收集2004–2015年丹阳市疟疾血检统计数据、传染病报告信息管理系统上报的疟疾病例与流行病学个案调查表, 以及2008–2015年蚊媒监测数据等, 进行统计分析。 结果 2004–2015年丹阳市累计报告疟疾病例58例, 年平均发病率为0.60/10万。 其中间日疟占 65.52% (38/58), 恶性疟占5.17% (3/58), 卵形疟占1.72% (1/58), 未分型占27.59% (16/58)。 本地感染病例占31.03% (18/ 58), 输入性病例占68.97% (40/58); 2011年起无本地感染病例发生。 中华按蚊作为丹阳市唯一的疟疾传播媒介在境内仍普遍存在, 但密度较低。 结论 输入性疟疾严重威胁丹阳市消除疟疾成果, 需加强输入性疟疾疫情的监测和处置。.
Keywords: Danyang City; Epidemiological characteristic; Malaria; Surveillance.