赞比亚南部长期干旱后阿拉伯按蚊的季节性、吸血行为及恶性疟原虫传播情况
Seasonality, blood feeding behavior, and transmission of Plasmodium falciparum by Anopheles arabiensis after an extended drought in southern Zambia.
作者信息
Kent Rebekah J, Thuma Philip E, Mharakurwa Sungano, Norris Douglas E
机构信息
The W. Harry Feinstone Department of Molecular Microbiology and Immunology, The Johns Hopkins Malaria Research Institute, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland 21205, USA.
出版信息
Am J Trop Med Hyg. 2007 Feb;76(2):267-74.
Transmission of Plasmodium falciparum is hyperendemic in southern Zambia. However, no data on the entomologic aspects of malaria transmission have been published from Zambia in more than 25 years. We evaluated seasonal malaria transmission by Anopheles arabiensis and An. funestus s.s. and characterized the blood feeding behavior of An. arabiensis in two village areas. Transmission during the 2004-2005 rainy season was nearly zero because of widespread drought. During 2005-2006, the estimated entomologic inoculation rate values were 1.6 and 18.3 infective bites per person per transmission season in each of the two village areas, respectively. Finally, with a human blood index of 0.923, An. arabiensis was substantially more anthropophilic in our study area than comparable samples of indoor-resting An. arabiensis throughout Africa and was the primary vector responsible for transmission of P. falciparum.
恶性疟原虫的传播在赞比亚南部属于高度流行。然而，25多年来赞比亚尚未发表过关于疟疾传播昆虫学方面的数据。我们评估了阿拉伯按蚊和嗜人按蚊指名亚种的季节性疟疾传播情况，并对两个村庄地区阿拉伯按蚊的吸血行为进行了特征描述。由于普遍干旱，2004 - 2005年雨季的传播几乎为零。在2005 - 2006年期间，两个村庄地区每个传播季节每人的估计昆虫接种率分别为1.6次和18.3次感染性叮咬。最后，阿拉伯按蚊的人群血指数为0.923，在我们的研究区域，它比整个非洲室内栖息的阿拉伯按蚊可比样本更倾向于吸食人血，并且是导致恶性疟原虫传播的主要病媒。
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