黑热病(Kala—azar)是一种具有地域性分布特征的寄生虫病。我省流行原很严重,病人主要分布于关中平原地区,陕北黄土高原地带则为散在发生。解放后在党和政府关怀下,通过综合防治,至1958年底已告基本消灭。近年来,随着防治成果的扩大和巩固,陕北地区的发病人数虽日趋减少,但新病例仍陆续发现。据延安地区卫生防疫站资料,仅1980—1982年就有25例报告。现将1974—1983年间延安地区人民医院收 Kala-azar is a parasitic disease with a geographical distribution. The epidemic in our province was very serious. The patients were mainly distributed in the Guanzhong Plain and the Loess Plateau in northern Shaanxi. After the liberation, with the care of the party and the government, it was basically eliminated by the end of 1958 through comprehensive prevention and control. In recent years, with the expansion and consolidation of prevention and treatment results, although the number of patients in northern Shaanxi has been decreasing, the new cases are still being discovered one after another. According to Yan’an area health and epidemic prevention station data, only in 1980-1982 there are 25 cases reported. Now 1974-1983 People’s Hospital in Yan’an received