title: [Study on influence degree of probability of endemic factors for schistosomiasis transmission in Yunnan mountainous regions].
abstract: In Zhonghe Village of Weishan County, Yunnan Province, a schistosomiasis endemic area of mountainous valley subtype, an epidemiological investigation was conducted on its natural, biological and social factors influencing schistosomiasis transmission in 1987-1990. The results were analyzed by stratified sampling analysis and probability accumulation method. It was demonstrated that 12 of 29 factors were the most important factors influencing schistosomiasis transmission including annual average air-temperature, number of infection sources, number of spots with infected snails, water temperature and annual average rainfall, etc. The values of influence degree before and after intervention measures were 3.513 and 2.066, respectively, the decrease being 41%.
authors.affiliation: Institute of Parasitic Diseases, Chinese Academy of Preventive Medicine, Shanghai.
authors.forename: Y
authors.initials: Y
authors.lastname: Wang
authors.forename: F
authors.initials: F
authors.lastname: Xie
authors.forename: J
authors.initials: J
authors.lastname: Zheng
authors.forename: D
authors.initials: D
authors.lastname: Zhu
authors.forename: X
authors.initials: X
authors.lastname: Zhang
authors.forename: Z
authors.initials: Z
authors.lastname: Qiu
authors.forename: G
authors.initials: G
authors.lastname: Yin
authors.forename: W
authors.initials: W
authors.lastname: Yang
authors.forename: Y
authors.initials: Y
authors.lastname: Duan
authors.forename: S
authors.initials: S
authors.lastname: Bi
mesh_terms: D000818:Animals; D002681:China / Q000453:epidemiology; D004812:Epidemiologic Methods; D006801:Humans; D011336:Probability; D012554:Schistosomiasis japonica / Q000453:epidemiology / Q000635:transmission*; D012908:Snails / Q000469:parasitology; D014887:Weather