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VitA免疫的特殊作用在人体还很不清楚。本实验目的是观察VitA对实验动物细胞和体液免疫影响，提供预防儿童亚临床VitA缺乏的理论根据。一、材料V讨A胶囊（苏卫药准率182批号）2．5万U／胶囊，用吐温so（浙江龙游化J：试剂厂仅）配制成500u／ml，实验动物为新西兰纯种兔，雌雄不
The specific role of VitA immunity in the human body is still unclear. The purpose of this experiment is to observe the effects of VitA on the cellular and humoral immunity of experimental animals and to provide a theoretical basis for preventing subclinical VitA deficiency in children. First, the material V discuss A capsule (Su Wei standard batch 182) 25000 U / capsule, with Tween so (Zhejiang Longyou J: Reagent Factory only) formulated 500u / ml, the experimental animal is New Zealand pure Rabbit, male or female