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某部于进驻浙江沿海某地后,连年发生一种流行病,感染率及发病率逐年升高。经调查,主要情况如下。一般情况:气候温暖潮湿,5～10月,月平均气温为18～27℃,相对湿度在80%以上。部队居住于濒海的农村,为一丘陵区,山谷间平原拥有大片农田,作物以水稻、番薯为主。常见的家畜、家禽有猪、狗、牛、鸡、鸭,重要的医学动物、昆虫有褐家鼠、小家鼠、黄毛鼠、黑线姬鼠,蚊、蝇、蠓、虻、蚋、蚤、虱、革螨、恙螨等。蚊、蠓较多,频繁叮人吸血。居民多沿山麓建筑较简陋的房屋,每家都备有缸罐,积储雨水供用,居民点内外污水沟、坑较多。夏季炎热时,
After a certain department stationed in a certain place along the coast of Zhejiang Province, an epidemic occurred year after year, with the infection rate and incidence increasing year by year. After investigation, the main situation is as follows. General situation: the climate is warm and humid, 5 to 10 months, the monthly average temperature of 18 ~ 27 ℃, relative humidity above 80%. Troops live in the coastal areas of the countryside, as a hilly area, valley plains have large areas of farmland, crops mainly rice, sweet potato. Common livestock, poultry, pigs, dogs, cattle, chickens, ducks, important medical animals, insects Rattus norvegicus, Mus musculus, Rattus norvegicus, Apodemus, mosquitoes, flies, Fleas, lice, leather mites, chigger mites and so on. Mosquito, 蠓 more frequent bites vampire. More residents along the foothills of the building more primitive housing, each with a cylinder tank, accumulate rainwater storage for use, residential sewage ditch both inside and outside, pit more. When the summer is hot,