四川省黑热病流行病学和防治（摘要）

通过近２０年的调查研究，弄清了四川省流行因素及特点。犬是该病主要传染源，ＶＬ的发生和流行与犬的数量及其感染率有着密切关系。犬的感染率超过１５％可出现ＶＬ流行，低于１５％ＶＬ发病率低。１０岁以下儿童发病占患者总数的７２．２％，只要不养狗就可以控制新生儿童感染，ＶＬ病人的分布主要在沿江、河的滩地和山坡上的居民聚居地。消灭病犬、治疗病人和在疫点用杀虫剂滞留喷洒能有效控制ＶＬ流行。１９９４年的发病 为２

Epidemiology and Control of Kala Azar in Sichuan Province

Through nearly 20 years' investigation,the endemic factors and pattern of visceral leishmaniasis(VL) in Sichuan province have been found out. Dog is the major reservior. The ap-pearance and transmission of VL are closely related to the quantity and infection rate of domestic dogs. VL will be prevalent when dog infection rate is higher than 15%while the incidence remains at low level when that is less than 15%. VL incidence in children below ten years old is 72.2%of the total. Newborn infection could be controlled by prohibition of dog raising,.VL patients are dis-tributed mainly in basin and terrace along the rivers and streams. VL could be effectively controlled by combination of dog elimination, patient treatment and focal residual spraying with insecticide.The number of cases found in early 1994 was 20,reduced by 82.9%against the 117 in 1990.