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作者以26例感染华支睾吸虫或后睾吸虫的患者为感染组,15例未感染者为对照组,观察对象均系迁移到美国居住的老挝难民。感染组每人收集2次粪便用直接涂片和浓集法检查虫卵,并作虫卵计数。对照组每人作2～3次粪便检查,均未发现华支睾吸虫卵。两组人员均询问病史,作体格检查,用酶的比色法测定血清中5′-核甙酸酶值,用双抗体放射免疫法测定血清中IgE含量。6例中度感染者(虫卵数500～9,800只/g粪,估计有40～800条成虫寄生)作肝胆超声波检查。
In this study, 26 patients infected with Clonorchis sinensis or Clonorchis sinensis were infected, and 15 uninfected persons were control group. The subjects were all migrated to Laos refugees living in the United States. The infected group collected 2 times of stool per person and examined the eggs by direct smear and concentration method, and counted the eggs. Control group 2 to 3 times for each stool examination, did not find Clonorchis sinensis eggs. Two groups of patients were asked history, physical examination, enzyme-linked immunosorbent assay serum 5’-nucleoside enzyme value, using the double antibody radioimmunoassay determination of serum IgE levels. 6 cases of moderately infected (500 ~ 9,800 eggs / g fecal, an estimated 40 to 800 adult parasites) for liver and gallbladder ultrasound.