云南省微小按蚊A、C种群密度高峰及嗜血习性的观察  

Study on the seasonal abundance and blood preference of An.minimus A and An.minimus C in Yunnan Province

作　　者：郑彬[1] 汤林华[1] 王学忠[2] 马雅军[3] 周水森[1] 施文琦[1] 

机构地区：[1]中国疾病预防控制中心寄生虫病预防控制所 [2]云南省寄生虫病防治所,思茅665000 [3]第二军医大学病原生物学教研室,上海200433

出　　处：《国际医学寄生虫病杂志》2006年第4期171-173,共3页International JOurnal of Medical Parasitic Diseases

摘　　要：目的研究云南省勐腊县微小按蚊A、C种群密度高峰及其与当地疟疾发病的相关性,并比较微小按蚊A、C的嗜血习性。方法在云南省勐腊县选取人房,逐月收集微小按蚊,以复合PCR方法分子鉴别其为微小按蚊A或C,观察密度高峰;收集当地疟疾发病情况,分析其与微小按蚊A或C密度高峰的相关性。对勐腊和元江县人房和牛栏采集的吸血蚊经复合PCR方法分子鉴别后,以ELISA方法检测胃血来源。结果微小按蚊A的密度高峰出现在9月,微小按蚊C则在7月,两者密度高峰的出现均会引起当地疟疾发病人数的增加。微小按蚊A的吸人血率(19 .1 %)略高于微小按蚊C的(12 .8 %) ,但无统计学意义。结论微小按蚊A、C的的种群密度高峰略有不同,两者均嗜吸牛血,尚不能认为微小按蚊A、C的嗜血习性存在差异。Objective To study the relationship between the seasonal abundance of An. minimus A, C and the local malaria endemic situation and compare the difference of bloodmeal source between An. minimus A and An, minimus C, Methods An, minimus samples in Mengla County, Yunnan Province were collected monthly by hanging ultraviolet lamps inside the tenement, then An. minimus A or An. minimus C was identified by multiplex-PCR, the highest seasonal abundance of An. minimus A and An. minimus C was gained, Local malaria cases were collected and the relationship between the seasonal abundance and malaria endemic situation was estimated. The difference of blood meal source of An. minimus A and An. minirnus C was detected by ELISA to the samples collected in Mengla and Yuanjiang counties. Results The highest seasonal period of abundance of An. minimus A occurred in September, while for An. minimus C, the period was in July. Both occurrence of the high abundance was followed by an increase of malaria cases. The proportion of human bood meal in An. minimus A was a little higher （ 19.1% ） than that of An. minirnus C（ 12.8 % ）, but no statistic significance. Conclusion The period of high seasonal abundance of An. minirnus A and An. minimus C was a little bit different, both An. minimus prefered to bite bovine, however, there are no enough proof to indicate any statistic difference of blood preference between An. minimus A and An. minimus C.

关 键 词：微小按蚊 密度高峰 嗜血习性 

分 类 号：R384.1[医药卫生—医学寄生虫学] R195[医药卫生—基础医学]