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一些学者认为环卵沉淀试验是诊断曼氏血吸虫感染的最特异最敏感的血清学试验之一,但冻干虫卵的抗原有不同程度的损失,使环卵反应减弱或转为阴性。本文报导在改良的保存剂中保存的虫卵或含虫卵肉芽肿的肝脏,于-70℃分别保存1年或6个月而不失其活性。按Ritchie和Berrios-Dur(?)n(1961)法略加改进,从感染曼氏血吸虫小鼠的肝脏分离虫卵,然后放入1.7%盐水溶液中,并立即
Some scholars believe that the ESR test is one of the most specific and sensitive serological tests for the diagnosis of Schistosoma mansoni infection. However, the antigens of freeze-dried eggs have different degrees of loss, and the ring-ovulation response is reduced or turned negative. This article reports the preservation of eggs in an improved preservative or liver containing an egg granuloma, which were stored at -70 ° C for 1 year or 6 months without loss of activity. Slightly modified according to Ritchie and Berrios-Dur (?) N (1961), eggs were isolated from the liver of infected S. mansoni mice and then placed in 1.7% saline and immediately