广西嗜人按蚊分布区控制后期疟疾流行特征分析  

Analysis of the prevalent features of malaria at the later stage of malaria control in Anopheles anthropophagus-distributed areas of Guangxi

作　　者：郭传坤[1] 李锦辉[1] 覃业新[1] 林珍[1] 黄江荣[2] 吴自林 潘绵方 

机构地区：[1]广西壮族自治区疾病预防控制中心,广西南宁530021 [2]环江县卫生防疫站,广西环江547100 [3]三江县卫生防疫站,广西三江545500 [4]罗城县卫生防疫站,广西罗城546400

出　　处：《中国热带医学》2004年第6期913-915,共3页China Tropical Medicine

基　　金：广西科技厅回国基金资助项目 (992 0 0 1 5)

摘　　要：目的　分析广西壮族自治区嗜人按蚊分布区 1998～ 2 0 0 3年疟疾监测结果和流行特征 ,评价监测措施 ,为嗜人按蚊分布区疟疾防治后期疟疾监测提供科学依据。　方法　收集 1998～ 2 0 0 3年广西嗜人按蚊分布区 15个县当地居民发热病人、流动人口发热病人、病灶点居民以及重点人群荧光抗体监测资料进行回顾性研究。　结果　 6年间 15个县年血检率在 0 2 8%～ 10 8% ,当地居民发热病人、病灶点居民血检阳性率均为 0 0 4% ,流动人口发热病人血检阳性率为 0 86% ,本地感染病例和输入的病例分别占总病例的 5 5 0 9% (4 87/ 884)和 44 91% (3 97/ 884) ,相对集中分布在环江县移民安置点和南丹、三江、融水、上思 5个县。外出感染回归病例占 2 8 85 % ,外来病例占 16 0 6% ;重点人群I FAT抗体阳性率为 0 13 %。　结论　广西当前嗜人按蚊分布区疟疾发病率虽控制在 1/万以下 ,但环江、南丹、三江、融水和上思 5个县的疟疾发病较多 ,以本地病例为主 ;其余 10市县则以输入感染病例为主 ,疟疾疫情相对稳定。Objective To analyze the result of malaria surveillance and malaria epidemiologic characteristics from 1998 to 2003 in Guangxi, and to provide scientific proof for formulating malaria surveillance methods at the late-stage of malaria control in the areas with An anthropophagus as vector. Methods The data of blood smear examination of febrile patients from local residents and mobile population,surveillance of IFAT in focus residents in 199842003 were collected from 15 counties and retrospectively analyzed. Results The annual blood examination rate (ABER) was 0.28～10.8% in 15 counties. The average positive rates of blood examination were 0.04% and 0.86% in the febrile patients of local residents and mobile population respectively. The percents of returned patients acquired the infection in other areas and the patients from outside were accounted for 28.85% and 16.06% respectively. The indigenous cases and imported cases accounted for 55.09% (487/884) and 44.91% (397/884) of the total malaria cases respectively. The positive rate of IFAT in focus residents was 0.13%. 487 local malaria cases mostly distributed in the counties of Huanjiang, Nandan, Sanjiang, Rongshui and Shangsi. Conclusion The malaria incidence in An. anthropophagus distributing areas was under 1/10000.The indigenous cases of malaria was dominated in 5 counties ,while in other 10 counties the imported malaria cases was dominated. The situation of malaria in this area is stable.

关 键 词：嗜人按蚊 疟疾监测 发热病人 分布区 重点人群 流行特征分析 病灶 感染病例 荧光抗体 后期 

分 类 号：R531.3[医药卫生—内科学] R384.1[医药卫生—临床医学]