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已知免疫系统可维护机体对细菌、病毒等抗原刺激的生理平衡状态,免疫功能失调是导致经常患感染性疾病的原因之一。曾研究2,000例小儿患急、慢性呼吸道疾病时的免疫功能,发现由原发性免疫缺陷成为呼吸道病因者仅占3.5％,其余96.5％在病程中免疫功能(包括局部、体液和细胞免疫)均发生变化。急性呼吸道疾病开始时的第一道防线为上呼吸道的局部免疫,第二道防线在支气管末梢合成IgG。SIgA是呼吸道分泌物中最主要的免疫球蛋白,有作者对健康儿童口腔分泌物SIgA进行研究,发现唾
The immune system is known to maintain the physiological balance of the body’s stimulation of antigens such as bacteria and viruses. Immune dysfunction is one of the causes of frequent infectious diseases. Has studied 2,000 cases of children with acute and chronic respiratory diseases, immune function and found that the primary cause of immune deficiency into the cause of respiratory tract only 3.5%, the remaining 96.5% during the immune function (including local, humoral and cellular immunity) are Change. The first line of defense at the outset of acute respiratory disease is local immunity to the upper respiratory tract, and the second line of defense synthesizes IgG at the bronchial terminals. SIgA is the most important respiratory secretions in immunoglobulin, the author of healthy children’s oral secretions SIgA study found that saliva