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12只青年猩猩感染日本血吸虫尾蚴50条/公斤体重,另2只不感染作为对照。感染的12只中4只的血清引起恒河猴被动性皮肤过敏反应。被动性皮肤反应的抗原出现于猩猩感染后2个月并持续1～2个月。全部感染动物的皮肤试验,无论是肉眼所见和组织学检查,均属即时性过敏反应,而无迟延性反应。未感染者无反应:感染日本血吸虫猩猩的IgE免疫球蛋白,用人的丙球蛋白E做放射免疫试验,证明有升高。全部感染者的血清进行放射活性抗原微沉淀素试验,证明
Twelve young orangutans were infected with 50 S. japonicum cercariae per kilogram of body weight, and the other two were not infected as a control. Four out of 12 infected sera caused a passive cutaneous anaphylaxis in rhesus monkeys. Passive skin reaction antigen appears in orangutans 2 months after infection and lasted 1 to 2 months. All infected animal skin test, both naked eye and histological examination, are immediate allergic reactions, without delay response. Non-infected non-response: IgE immunoglobulins infected with Japanese schistosome orangutan, with human immunoglobulin E radioimmunoassay, to prove elevated. All infected sera were tested for radioactive antigen micro-amylin