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１９９６ ～１９９７ 年，分别在河南省许昌市的许昌县及鄢陵县进行人群及动物旋毛虫病流行病学调查。结果发现家猪旋毛虫感染率为２ ．６１％ 。血清学检查，家猪、家鼠及人旋毛虫抗体阳性率依次为５ ．４５ ％ ，６ ．６１％ 和４ ．８５ ％ ；汉民血清的阳性率（８ ．８２ ％ ） 高于回民（０ ．９６％ ）。对同１ 份家猪肌肉标本采取直接压片法、人工消化法及血清学抗体检测３ 种方法检查，发现直接压片法容易漏检，人工消化法及血清学抗体检测法的检出率较高。提示目前当地取上市猪肉膈肌直接压片镜检旋毛虫检疫方法亟待改进。为不漏检，建议对猪肉上市前检疫时先用血清学试验初筛，对检出阳性者再用人工消化法确证。
From 1996 to 1997, epidemiological investigation of Trichinella spiralis was conducted in Xuchang County and Yanling County in Xuchang City, Henan Province. The results showed that domestic pig Trichinella infection rate of 2. 61%. Serological tests, domestic pigs, domestic mice and human Trichinella antibodies positive rates of 5. 45%, 6. 61% and 4. 85%. The positive rate of Han serum (8 .82%) was higher than that of Hui people (0.96%). The results of direct compression, artificial digestion and serological antibody test of 1 domestic pig muscle showed that direct compression was easy to miss, and the detection rate of artificial digestion and serological antibody test high. Prompted that the current local market pork diaphragmatic direct compression microscopic examination of Trichinella quarantine urgent need to be improved. Do not miss seized, it is recommended that the first quarantine of pork before screening with serological test screening, and then detected positive by artificial digestion confirmed.