利什曼原虫是由白蛉传播的一组寄生虫,存在于世界各地,能感染多种脊椎动物,引起从皮肤自限性损害到内脏的高度病损和高死亡率的后果。由于美国本地自发的利什曼病病人很少经染色或培养证实有虫体,所以一直未受到重视。然而,从文献记载和后来在南得克萨斯州发现的弥漫性皮肤利什曼病 Leishmania is a group of parasites that are transmitted by whiteflies and exist throughout the world and can infect a wide range of vertebrates, causing the consequences of a high degree of lesion and high mortality from visceral damage to internal organs. As the United States, the local self-made leishmaniasis patients rarely confirmed by staining or culture of parasites, it has not been valued. However, diffuse cutaneous leishmaniasis was documented and later found in southern Texas