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宝宝1～3岁时,总爱闹感冒、扁桃腺炎、咽喉炎、气管炎、肺炎、肠炎、皮肤脓肿、中耳炎等感染性疾病。这是因为小儿有段“易感染期”。所谓“易感染期”,就是在这段时间内,小儿的抵抗力较差,抵挡不住病原体的进攻。其原因,一是因为小儿的免疫系统发育不成熟;二是因为小儿从母体带来的抗体已耗尽。新生儿之所以患感染性疾病较少,是因为有来自母体的IgG与病原体进行对抗。半岁之
Baby 1 to 3 years old, always love the flu, tonsillitis, pharyngitis, bronchitis, pneumonia, enteritis, skin abscess, otitis media and other infectious diseases. This is because children have a period of “susceptible period.” The so-called “susceptible period” is in this period of time, children’s poor immunity, unable to resist the attack of pathogens. The reason, first, because of the immature immune system in children; Second, because the antibodies the child has brought from the mother has been depleted. Neonatal infections are less common because of maternal IgG and pathogens. Six months old