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5个让孩子免疫力低下的原因
很多人都会感到,面对病菌,宝宝会比成人更容易生病,这是由于宝宝的免疫力没有成人强的原因。宝宝在6岁以前,他的免疫力被称为“生理性免疫功能低下状态”,此时宝宝的免疫力还不够健全,因此,宝宝会比较容易生病,那么,造成孩子免疫力低下的是 ...
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