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Effect of complement depletion on anticapsular-antibody-mediated immunity to experimental infection with Haemophilus influenzae type b.

机译:补体耗竭对抗荚膜抗体介导的b型流感嗜血杆菌实验性感染免疫的影响。

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Antibody to the capsular polysaccharide of Haemophilus influenzae type b (Hib) was not protective in infant rats depleted of complement by cobra venom factor (CoVF) even when serum antibody levels were many times the minimum protective level. Partial protection from Hib infection was achieved in CoVF-treated rats only if they were passively hyperimmunized with large doses of immunoglobulin G Hib capsular polysaccharide antibody. In addition, nonimmune CoVF-treated rats had higher mortality and blood bacterial density than nonimmune rats with intact complement systems.
机译:即使当血清抗体水平是最低保护水平的许多倍时,b型流感嗜血杆菌荚膜多糖(Hib)抗体对补充了眼镜蛇毒因子(CoVFF)补体的幼鼠也没有保护作用。仅在CoVF治疗的大鼠中接受大剂量的免疫球蛋白G Hib荚膜多糖抗体被动超免疫后,才能部分保护其免受Hib感染。另外,与具有完整补体系统的非免疫大鼠相比,非免疫CoVF治疗的大鼠具有更高的死亡率和血液细菌密度。

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