内脏利什曼病(VL)是一种重要的以昆虫为媒介的疾病。该病在苏丹东部和南部广大农村地区流行。流行病学调查表明,该地VL由杜氏利什曼原虫引起,多见于儿童,东方白蛉是唯一被证实的媒介昆虫,且多生活在林区。然而,苏丹东部一些少有白蛉活动的村庄中VL发病率很高,特别是很少接触白蛉的儿童亦多发病。 Visceral leishmaniasis (VL) is an important insect-mediated disease. The disease is prevalent in the vast rural areas of eastern and southern Sudan. Epidemiological studies have shown that the VL is caused by Leishmania donovani, more common in children, the white catfish is the only confirmed media insects, and more live in the forest. However, the prevalence of VL in some villages in eastern Sudan that are less active in white catfish is high, especially among children who are rarely exposed to white catfish.