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Experimental Studies on Cholera Immunization II. Evidence for Protective Antitoxic Immunity Mediated by Serum Antibodies as Well as Local Antibodies

机译:霍乱免疫的实验研究II。血清抗体和局部抗体介导的保护性抗毒性免疫的证据

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By use of the ileal loop technique, the resistance to challenge with cholera enterotoxin was compared between unimmunized rabbits and rabbits immunized with toxin or toxoids. It was shown that subcutaneous as well as intraintestinal immunization induced protective immunity, the toxin being a better immunogen than Formalin-induced toxoid and much better than heat-induced toxoid. The relation between protection and serum antitoxin titer was poor, e.g., protection was seen in the absence of demonstrable serum antibodies. However, intravenous administration of antitoxic antiserum conferred some protection, suggesting that local as well as serum-mediated antitoxic immunity is operating in the host defence against cholera.
机译:通过回肠环技术,在未免疫的兔子和经毒素或类毒素免疫的兔子之间比较了霍乱肠毒素对挑战的抵抗力。结果表明,皮下和肠内免疫均能产生保护性免疫力,该毒素的免疫原性优于福尔马林诱导的类毒素,且远胜于热诱导的类毒素。保护作用与血清抗毒素滴度之间的关系很差,例如,在没有可证明的血清抗体的情况下可以看到保护作用。但是,静脉内给予抗毒性抗血清可提供一定的保护作用,这表明局部和血清介导的抗毒性免疫在抵抗霍乱的宿主防御中起作用。

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