感染性疾病在儿科非常多见 ,尤其是呼吸道感染 ,发病年龄在 1～ 3岁居多 ,说明在此年龄组小儿的免疫功能是紊乱的。我科于 1 998年初开始用清开灵治疗呼吸道感染患儿 80例 ,同时测定患儿免疫球蛋白 (ｌｇ) ,现将治疗效果报告如下 :1　临床资料1 1　一般资料　本组对象均为住院 Infectious diseases are very common in pediatrics, especially respiratory infections. The age of onset is mostly between 1 and 3 years old, which indicates that the immune function of children in this age group is disordered. In our department, we began to use Qingkailing in the treatment of 80 cases of respiratory tract infection in early 1998. Simultaneous determination of immunoglobulin (lg) in children was reported as follows: 1 Clinical data 1 1 General information All patients in this group were hospitalized.