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兰氏贾第鞭毛虫属世界性分布。介绍部分学者对该虫在国内部分地区调查的流行情况,其感染率由2.9％～19.4％不等。统计了13年(1948～1962年)、5年(1973～1978年)及2年(1986～1988年)在协和医院就诊人群粪检中该虫不同年限的感染率,由1.21％～1.28％,略呈上升趋势。灭滴灵为目前治疗该虫的首选药物,2次治愈率可达100％,并对药品的药理作用进行了分析。对混合感染者应先驱蠕虫后,再进行治疗。
Giardia lamblia is a worldwide distribution. Introducing some scholars on the prevalence of the insects in some parts of China, the infection rate ranged from 2.9% to 19.4%. The infection rates of different years in the fecal semen from 13 to 19 years (1948 to 1962), 5 years (from 1973 to 1978) and 2 years (1986 to 1988) in the hospital crowd were counted, ranging from 1.21% to 1.28% , A slight upward trend. Metronidazole is currently the first choice for the treatment of the insects, the second cure rate of up to 100%, and the pharmacological effects of the drug were analyzed. The mixed infection should pioneer worms before treatment.