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某农场位于血吸虫病流行区江中的小洲上,洲东西长15公里,南北宽2.6公里,东西两端有大片芦苇滩地,滩上钉螺湿地孳生,感染率也高。居民血吸虫病感染率一般地区为30%,东、西部的一些生产队则高达80%。虽经历年防治,洲上居民仍有病人二千余人,每年都有仇性血吸虫病发生,据不完全统计,1962年为76人,1964年有130人,由于生产需要,某部队在该洲西部开垦芦滩一千四百余亩,约合93万平方米。为了保证生产人
A farm in schistosomiasis endemic area of the river in small continents, continents 15 km long east-west, 2.6 km north-south width, east and west ends of a large strip of reed beach, snails beach wetlands breeding, the infection rate is also high. Residents schistosomiasis prevalence rate of 30% of the general area, some production teams in the eastern and western regions is as high as 80%. Despite the years of prevention and treatment, there are still over 2,000 inhabitants of Chau on the continent, and cholera-schistosomiasis occurs every year. According to incomplete statistics, 76 were in 1962 and 130 in 1964. As a result of production needs, Island western reclamation more than 1,400 acres of reed, about 930,000 square meters. In order to ensure the production of people