加拿大北部洛翁湖地区的居民,每年都有阿米巴病发生,从1968年8月至1970年7月的两年内,分别有27例和28例患者。作者从1970年7月下旬开始,在该地区的一个居民区内给居民口服甲硝哒唑进行控制阿米巴病的观察。头3个月每月发药一次,以后每两个月发药一次,直到1971年7月为止。每次服药一剂,50公斤或50公斤体重以上者的服药剂量为2克(相当于43毫克/公斤);从第4次开始,剂量减为1.5克。儿童 Residents of Lake Luon in northern Canada have amebiasis every year, with 27 and 28 patients, respectively, from August 1968 to July 1970. From late July 1970, the author orally administered metronidazole to inhabitants in a residential area in the area for the control of amebiasis. The first three months of medicine once a month, after every two months dispensing, until July 1971 so far. Each dose, 50 kg or 50 kg body weight above the dose of 2 grams (equivalent to 43 mg / kg); from the 4th dose to 1.5 grams. child