2010-2013年浙江省疟疾流行情况分析

目的分析2010 2013年浙江省疟疾流行特征,为进一步推进消除疟疾工作提供科学依据。方法通过网络直报收集2010 2013年浙江省疟疾病例基本信息,结合个案调查数据,分析病例流行特征。结果 20102013年浙江省共报告603例疟疾病例,其中间日疟200例,恶性疟395例,卵形疟6例,三日疟1例,混合感染1例。本地感染病例10例,均为间日疟,占病例总数的1.66%,输入性病例593例,占病例总数的98.34%。2012年开始无本地病例报告。各月均有病例报告,流行季节(5 10月)和非流行季节报告病例数差异无统计学意义(χ2=3.254,P=0.354)。金华、杭州、温州、丽水和宁波等地区报告病例数较多,占病例总数的76.45%(461/603)。20~49岁人群占病例总数的80.10%(483/603);男女性别比为6.9∶1。感染来源地主要为非洲和亚洲等疟疾流行区,分别占病例总数的70.98%和16.92%。结论浙江省本地感染病例已经控制,输入性病例主要来自非洲和亚洲,以青壮年外出劳务人员为主,应加强风险人群的疟疾监测和健康教育。

Epidemiological analysis on malaria incidence in Zhejiang, 2010 -2013

Objective To understand the incidence pattern of malaria in Zhejiang province from 2010 to 2013, and provide a scientific evidence for malaria elimination. Methods The incidence data of malaria in Zhejiang from 2010 to 2013 were collected from national disease reporting information system and epidemiological investigation. Results A total of 603 malaria cases were reported, including 200 vivax malaria cases, 395 falciparum malaria cases, 6 ovale malaria cases, 1 quartan malaria case and 1 mixed infection case. Among the reported cases, 10 （ 1.66% ） occurred in local people （ 1.66% ）, 593 （98.34%） were imported cases, and no local malaria case has been found since 2012. Malaria cases were reported every month, and the case number during May-October was not significantly different from that in other months （X2 = 3. 254,P = 0. 354）. The cases mainly distributed in Jinhua, Hangzhou, Wenzhou, Lishui and Ningbo, the cases in these areas accounted for 76. 45% of the total （461/603）. Most cases were 20 to 49 years old, accounting for 80. 10% of the total （483/603） and the male to female ratio of the cases was 6.9： 1. The infection sources were mainly from malaria endemic regions of Africa and Asia, accounting for 70.98% and 16. 92%. Conclusion The local malaria transmission have been controlled in Zhejiang. However, imported malaria becomes a major challenge. It is still necessary to strengthen the malaria surveillance and health education among risk population.