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１９９７年以来，环江县接收来自都安县的下坳、古山等１３个乡的移民３万多人。１９９８年６月，下坳移民安置点发生疟疾病人５例，７月我们对古山、下坳等４个移民安置点，３个移民疟疾病人的原籍村庄和移民疟疾病灶点周围的２个环江县当地居民点进行了疟疾流行病学调查，结
Since 1997, Huanjiang County has received over 30,000 immigrants from 13 townships including Xia’ao and Guhanshan in Du’an County. In June 1998, 5 cases of malaria occurred in the lower colones resettlement site. In July, we settled 4 resettlement sites in Gushan and Xiaao, 3 villages of migrant malaria patients and 2 circumcision County local residents conducted a malaria epidemiological survey, conclusion