Vivenes A, Oviedo M, Márquez J C, Montoya-Lerma J
Centro de Investigaciones J. W. Torrealba, Trujillo, Venezuela.
Mem Inst Oswaldo Cruz. 2001 Apr;96(3):281-3. doi: 10.1590/s0074-02762001000300001.
Migration and colonization of the oesophagus by Leishmania mexicana parasites were enhanced after digestion of a second bloodmeal intake in Lutzomyia evansi. This event has epidemiological significance since it affects the infection susceptibility of this sand fly species, which is a proven vector of L. chagasi in Colombian and Venezuelan visceral leishmaniasis foci. Also, it may explain the host seeking behaviour displayed by some partially bloodfed flies found inside houses.
在伊凡斯罗蛉摄取第二顿血餐后，墨西哥利什曼原虫寄生虫在食管中的迁移和定殖得到增强。这一事件具有流行病学意义，因为它影响这种白蛉物种的感染易感性，而该白蛉物种是哥伦比亚和委内瑞拉内脏利什曼病疫源地中已证实的恰加斯利什曼原虫的传播媒介。此外，这可能解释了在房屋内发现的一些部分饱血的白蛉所表现出的寻找宿主行为。
