2013年江苏省疟疾疫情流行病学分析

Epidemiological analysis of malaria prevalence in Jiangsu Province in 2013

目的掌握江苏省2013年疟疾疫情及流行特征,为制订和调整适合该省的消除疟疾策略和措施提供依据。方法对2013年全省网络报告疟疾疫情和专报系统的流行病学调查资料进行统计分析。结果 2013年江苏省共报告疟疾341例,较2012年的198例上升72.22%,发病率为0.050/万;除1例为源于输入病例的输血感染外,其余均为境外输入病例。病例主要分布在连云港(占15.84%,54例)、南通(占14.08%,48例)、扬州(占14.08%,48例)、淮安(占11.44%,39例)和盐城(占8.50%,29例)等5市。所有病例均经江苏省参比实验室确诊。其中,恶性疟286例、间日疟8例、三日疟9例、卵形疟30例,混合感染8例。结论江苏省已连续2年无本地感染疟疾病例报告,消除疟疾工作成效显著;但境外感染的输入疟疾病例日益增多,且感染虫种呈多样性。境外输入疟疾仍是该省疟疾防控工作的重点。

Objective To understand the malaria epidemic situation and characteristics in Jiangsu Province in 2013,so as to provide the evidence for formulating and adjusting effective malaria elimination strategies and measures. Methods The reported malaria cases from the Internet Reporting System and the epidemiological data of malaria in Jiangsu Province were collected and analyzed. Results A total of 341 malaria cases were reported in Jiangsu Province in 2013 with the incidence of 0.050/10000,which increased by 72.22% compared with that in 2012（198 cases）. All the cases were imported from other countries including one infected by blood transfusion resulted from imported infection. The cases were mainly distributed in Lianyungang City（15.84%,54 cases）,Nantong City（14.08%,48 cases）,Yangzhou City（14.08%,48 cases）,Huaian City（11.44%,39 cases）and Yancheng City（8.50%,29 cases）. All the cases were confirmed in Jiangsu Provincial Reference Laboratory and there were 286 cases of Plasmodium falciparum,8 cases of P. vivax,9 cases of P. malariae,30 cases of P. ovale and 8 cases of mixed infections. Conclusions There were no local malaria cases reported from Jiangsu Province in the last two years which reflected effective achievements of malaria elimination. However,the situation of imported malaria is more serious and the species of infected plasmodium are more diverse. Imported malaria from other countries remains the key of malaria control in Jiangsu Province.