类毒素经过处理后已消除其毒素特性的一种物质，但仍保留有激发产生抗毒素的能力，用于免疫中。

A substance that HAS been treated to destroy its toxic properties but retains the capacity to stimulate production of antitoxins, used in immunization.

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治疗方式为及时注射白喉抗毒素，产生长期的免疫力。

Diphtheria is. treated with an antitoxin that neutralizes the toxin and produces long-term immunity.

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方法以不同剂量霍乱疫苗免疫小鼠，用间接elisa方法检测小鼠全血的抗菌、抗毒抗体滴度，小鼠毒菌攻击法计算保护率。

Methods The mice were immunized by different doses of cholera vaccine. Titer of antiserum against cholera strain and toxin were tested by indirect enzyme-linked immunosorbent assay (ELISA).

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