Resistance to the disease depends largely on the availability of specific neutralizing antitoxin in the bloodstream and 对白喉的抵抗力主要靠血液和组织中特异抗毒素的中和作用。
The infection occurred either clinically or subclinically at an early age and resulted in the widespread production of a在幼儿期发生临床或亚临床感染，使得人群中广泛存在抗毒素。