Résumé
Objective To analyze the trends of leprosy epidemic and evaluate the effects of its control in Yunnan Province. Methods The epidemiologic data were analyzed. Results There were 50 797 leprosy patients detected in Yunnan during 1954～ 1998 with a high prevalence in china.Among these patients,37 639 were cured,10 447 died,and 1 069 dropped out.There were 1 642 active patients at the end of 1998.It was in 1966 that the prevalence is highest(0.82/1 000) with 18 350 active patients and decreased to 0.04/1 000 in 1998.The incidence was 19.37/100 000 in 1957 and decreased to 0.32/100 000 in 1998.The most numerous patient (4 680) was detected with a rate of 24.45/100 000 in 1958,and the rate decreased to 1.63/100 000 in 1998.In 1960s and 1970s, a lot of leprosy villages were built and a mass survey of leprosy patients was taken.Doctors treated patients with DDS alone at that time. MDT was the first to use in Mengla in 1983 and spread during 1986～ 1989. Conclusion Several measures were taken for detecting and treating patients effectively, and the endemic and incidence decreased by a big margin as well.