危害人体健康的病原微生物——病毒、细菌,可以通过孩子们的口腔、鼻腔、皮肤进入到体内去,它们就像气势汹汹的敌人,会时常发起各种各样的进攻,但并不是每一次进攻都能达到目的——使孩子得病,这是为什么呢?原来,人有免疫系统,能保护机体不得病,这就是免疫力,也就是我们常说的“抵抗力”。孩子免疫低下怎么办人的免疫力有强弱之分,正常情况下,免疫力强的人,患病就少;而免疫力 Pathogenic microorganisms harmful to human health - viruses, bacteria, can enter the body through the children’s mouth, nose, skin, they are like menacing men, will often launch a variety of offensive, but not every attack Can achieve the purpose - to make the child sick, which is why? It turned out that people have the immune system to protect the body can not be sick, this is immunity, which is what we often say “resistance.” How to deal with child immunodeficiency immune system have the strength of the points, under normal circumstances, people with strong immunity, less sick; and immunity