Man biting rate seasonal variation of malaria vectors in Roraima, Brazil
Man biting rate seasonal variation of malaria vectors in Roraima, Brazil
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DOI：
10.1590/s0074-02762007005000024
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发表时间：
2007-06-01
期刊：
影响因子：
--
通讯作者：
Honório, Nildimar Alves
中科院分区：
文献类型：
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作者：
Barros, Fábio Saito Monteiro de;Honório, Nildimar Alves
疟疾控制的目标是采取区域行动，在这些行动中，更详细地了解当地传播决定因素至关重要。本文报道了达林按蚊和安按蚊的分布范围和叮咬指数。在亚马逊盆地北部热带稀树草原/冲积森林疟疾系统地区，旱季和雨季随水位变化而发生的高原病。成虫叮咬指数和分布范围均以雨季最高。亲爱的和安。albitarsis。在雨季，邻近的冲积森林被大面积淹没。与此同时，疟疾传播率最高，病例聚集在河流附近。随河流退潮，按蚊分布范围和密度减小。这种分布和密度的减少与附近地区疟疾的减少相对应。导出了一个指数回归函数来估计An。指定距离上的达林吉分布。按蚊的时空变化导致疟疾病例分布不均匀，对控制策略具有重要意义。
Malaria control has been directed towards regional actions where more detailed knowledge of local determinants of transmission is of primary importance. This is a short report on range distribution and biting indices for Anopheles darlingi and An. albitarsis during the dry and rainy season that follows river level variation in a savanna/alluvial forest malaria system area in the Northern Amazon Basin. Distribution range and adult biting indices were at their highest during the rainy season for both An. darlingi and An. albitarsis. During the rainy season the neighboring alluvial forest was extensively flooded. This coincided with highest rates in malaria transmission with case clustering near the river. As the river receded, anopheline distribution range and density decreased. This decrease in distribution and density corresponded to a malaria decrease in the near area. An exponential regression function was derived to permit estimations of An. darlingi distribution over specified distances. Anopheline spatio-temporal variations lead to uneven malaria case distribution and are of important implications for control strategies.