作者在皮内试验中采用了两种抗原,一种是用多房棘球蚴的包囊制备的(CDC 抗原),每毫升含氮浓度为17微克。另一种是用伊斯法罕绵羊包虫囊液经无菌手续提取的(Isfahan 抗原),每毫升含氮量为622微克,这种分为二份,一份未加稀释,另一分以无菌生理盐水稀释成17微克/毫升。 The authors used two antigens in the intradermal test, one with cysts of the genus Cyclospora (CDC antigen), with a nitrogen concentration of 17 micrograms per milliliter. The other is Esfahan sheep hydatid cyst fluid extracted by aseptic procedures (Isfahan antigen) per ml of nitrogen content of 622 micrograms, this is divided into two, one undiluted, another Dilute with sterile saline to 17 μg / ml.