Montoya-Lerma J, Cadena H, Segura I, Travi B L
Centro Internacional de Entrenamiento e Investigaciones Médicas, Cali, 5390, Colombia.
Mem Inst Oswaldo Cruz. 1999 May-Jun;94(3):277-83. doi: 10.1590/s0074-02761999000300001.
In Colombia, Leishmania mexicana has a scattered geographical distribution and no sand fly vectors have been associated with its transmission. During the present study, the anthropophilic sand fly Lutzomyia columbiana was found to be the only species collected using diverse methods, in a small focus of Le. mexicana in the municipality of Samaniego, SW Colombia. Ecological data indicate that this sand fly species is present in both peri and intradomestic habitats, where it readily bites man. Further evidence comes from experimental infections of wild-caught Lu. columbiana with Le. mexicana after feeding on infected hamsters. Based on these results, it is suggested that this sand fly is the most likely vector in the study area, suggesting the existence of a previously unknown sand fly-parasite association.
在哥伦比亚，墨西哥利什曼原虫具有分散的地理分布，且尚无白蛉媒介与其传播相关联。在本研究中，发现嗜人白蛉哥伦比亚罗蛉是在哥伦比亚西南部萨马涅戈市一个小型墨西哥利什曼原虫疫源地中，使用多种方法采集到的唯一物种。生态数据表明，这种白蛉物种存在于家庭周边和家庭内部栖息地，在这些地方它很容易叮咬人类。进一步的证据来自于野生捕获的哥伦比亚罗蛉在吸食感染仓鼠后被墨西哥利什曼原虫实验感染。基于这些结果，表明这种白蛉很可能是研究区域内的传播媒介，这意味着存在一种此前未知的白蛉 - 寄生虫关联。
