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现将近两年来国外血吸虫病流行病学研究情况,分为流行病学与控制措施两个方面,摘要综述如下: 一、流行病学 1.流行情况。血吸虫病广泛流行于亚非拉地区,全球有79个国家和地区流行血吸虫病,其中严重流行的有16个国家,约占20%。据Davis不完全统计,17种人和动物血吸虫的分布,非洲10种,印度6种,东南亚5种,南美1种。根据虫卵特征和螺类宿主,17种血吸虫分为三组:一组由双脐螺传播的“侧刺卵”(2种);一组由小泡螺传播的“终刺卵”(10种);一组由(角隽)螺传播的“圆状微小
Now nearly two years of foreign schistosomiasis epidemiological studies, divided into two aspects of epidemiology and control measures, summarized as follows: First, epidemiology 1. Epidemic situation. Schistosomiasis is prevalent in Asia, Africa and Latin America. There are 79 endemic schistosomiasis endemic areas in the world, of which 16 are endemic, accounting for about 20%. According to Davis’s incomplete statistics, the distribution of 17 human and animal schistosomes, 10 species in Africa, 6 species in India, 5 species in Southeast Asia and 1 species in South America. Seventeen species of schistosomes are grouped into three groups based on the characteristics of the eggs and the helminths: a group of “lateral prickles” (2 species) that are transmitted by Umbilicus; a group of “prothisis” (10 Species); a group by (angle Juan) Lo Spread "round tiny