应用旋毛虫幼虫冰冻切片抗原间接荧光抗体试验（ＩＦＡＴ）观察了旋毛虫病人阿苯哒唑治疗后血清抗体水平的变化。结果表明，治疗后抗体阳性率及抗体滴度均比治疗前明显升高，此现象可作为一种治疗有效的客观指标。此外，对旋毛虫病人及时治疗也可将检测到抗体的时间提前１～２周。旋毛虫病人从治疗后１个月开始抗体水平明显下降，至治疗后４个月时抗体转阴率已达７５％。因此，ＩＦＡＴ对旋毛虫病的近期及远期疗效考核均有一定价值。 Serum antibody levels after treatment with albendazole in Trichinella spiralis were observed by indirect immunofluorescence assay (IFAT) with Trichinella spiralis larvae. The results showed that after treatment, the positive rate of antibody and antibody titer were significantly higher than before treatment, this phenomenon can be used as a therapeutic objective. In addition, the timely treatment of patients with Trichinella antibodies can also detect the time 1 to 2 weeks earlier. Trichinella patients from the first month after treatment, antibody levels decreased significantly to 4 months after treatment when the antibody negative rate reached 75%. Therefore, IFAT has some value in the short-term and long-term efficacy evaluation of trichinosis.