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本研究以姜片虫成虫纯化抗原（ＰＡＡ）（蛋白含量为１０μｇ／ｍｌ）致敏经醛化和鞣化的人“Ｏ”型血红细胞，采用间接血凝试验（ＩＨＡ）检测了６９份姜片虫感染者血清和６０份正常人血清，若以抗体滴度≥１：１０者为阳性，则两者的阳性率分别为８１．２％和６．７％（Ｐ＜０．００５）；此外，还检测了日本血吸虫、肺吸虫、华支睾吸虫和长膜壳综虫感染者血清，其交叉反应率分别为１０．０％（４／４０）、１２．５％（１／８）、０（０／８）和０（０／４）。结果表明，该法具有较好的敏感性和特异性。
In this study, aldehyde and tanned human “O” red blood cells were sensitized with purified antigen of adult zooxanthellae (PAA) (protein content 10μg / ml). Indirect hemagglutination test (IHA) The positive rates of sera from patients infected with tabletworms and 60 normal individuals were 81.2% and 6.7% (P <0.005), respectively, when the antibody titer was 1: 10. In addition, sera of Schistosoma japonicum, paragonimiasis, Clonorchis sinensis, and Chlamydia spp. Were also detected. The cross-reactivity rates were 10.0% (4/40), 12.5% (1/8) , 0 (0/8) and 0 (0/4). The results show that the method has good sensitivity and specificity.