有的幼儿好像一年到头都在感冒、发烧,一个月要看好几次医生,做父母的不免会忧心忡忡地问:“我的孩子经常生病,是不是抵抗力太差了?”身体要对抗外来病原体的侵袭,必须靠各种完整的免疫防线与机能,也就是白血球、抗体及无缺口的皮肤及粘膜。 Some young children seem to have a cold and a fever all year long, depending on how many doctors a month. Parents can not help but be worried and ask: “My child often gets sick, is not the resistance is too poor?” The body to fight against foreign pathogens Invasion, must rely on a variety of complete immune defense and function, that is, white blood cells, antibodies and uncut skin and mucous membranes.