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材料及方法用外表健康、从未感染过血吸虫且沉孵粪检及尾蚴膜反应三次阴性的家兔120支,按性别、体重随机分作三组(表1)。体重0.9—1.2公斤者为出生不到六个月的幼年兔,2.2—3.0公斤者为六个月以上的成年兔。
MATERIALS AND METHODS: 120 healthy rabbits who had never seen schistosomiasis infection and had three negative fecal tests and cercariae membrane reactions were randomly divided into three groups according to sex and weight (Table 1). The weight of 0.9-1.2 kg are young rabbits less than six months old, 2.2-3.0 kg of adult rabbits over six months.