只有改善机体的内外环境，提高机体的免疫防御功能，才能从根本上防治结核。
Tuberculosis can be prevention and control at all only if improving internal and external environment and enhance immune defensive function of human body.
固有免疫是机体在长期种系发育与进化过程中逐渐形成的一种天然免疫防御功能。
Inherent immunity has innate immune defense function, which forms gradually in germ-line development and evolution of the long-term.
多数健康的儿童可通过自身的天然防御功能抵御感染，但免疫系统受损的儿童有形成肺炎的较高风险。
While most healthy children can fight the infection with their natural defences, children whose immune systems are compromised are at higher risk of developing pneumonia.
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