河南省永城市快速回升的疟疾疫情分析

Re-emerging malaria in Yongcheng city of Henan province

目的了解并分析河南省永城市2003-2005年的疟疾疫情,为当地的疟疾防治提供依据。方法收集永城市2003-2005年的疟疾疫情、传播媒介监测、发热病人血检、血清学调查等数据进行统计分析。结果永城市2003-2005年共报告疟疾病例890例,年平均发病率为2.17/万;2004年疟疾发病数比2003年增加13.00倍,2005年比2004年增加3.23倍。位于东部地区的10个乡(镇)发病数占疟疾病例总数的80.22%,学生和农民为主要发病人群。2005年发热病人血检阳性率为5.82%,而间接免疫荧光试验检测学生血清抗体阳性率15.31%,媒介按蚊监测捕获中华按蚊154只,未发现嗜人按蚊。结论永城市疟疾疫情明显回升,形势十分严峻,应加强疟疾防治,尽快遏制疫情上升势头。

Objective To understand and analyze malaria situation in Yongcheng city of Henan province during 2003 - 2005 and provide evidence for malaria control and prevention. Methods Data on malaria epidemic situation, vector surveillance, blood examination of fever cases and serological surveillance on students were collected and analyzed. Results 890 malaria cases were reported and average incidence of malaria was 2.17 per ten thousand in Yongcheng city during 2003 - 2005. The number of reported malaria cases in 2004 and 2005 were 13.00 and 3.23 times of that of the previous year, respectively. The number of malaria cases reported from 10 townships in eastern part of the city accounted for 80.22% of the total cases. Most of malaria cases were students and farmers. Positive rate was 5.82% in blood examination of fever patients and 15.31% in IFA of students, respectively. 154 Anopheles sinensis were captured and no An. anthropophagus was found in vector surveillance in 2005. Conclusion Dramatic re-emergence of malaria was observed in Yongcheng city. Various control measures of malaria should be strengthen and rising trend of malaria epidemic situation should be timely suppressed.