肺炎球菌的荚膜由多糖组成 ,其产生的荚膜抗体在与荚膜一结合 ,就能很容易引起中性粒细胞及巨噬细胞对肺炎球菌进行吞食并杀灭。抗生素发现之前 ,肺炎球菌感染是最重要的引起死亡的病因 ,能否产生荚膜抗体意味着患者能否生存。因此便从马血清中大量提取荚膜抗体 ,效果明显。其 The pneumococcal capsule consists of polysaccharides, and the capsular antibodies produced by it combine with the capsule to easily cause neutrophils and macrophages to swallow and kill pneumococci. Before the discovery of antibiotics, pneumococcal infection is the most important cause of death, and the ability to produce capsular antibodies means that patients can survive. Therefore, a large amount of horse serum extracted from capsular antibodies, the effect is obvious. its