肺炎是儿科最常见的疾病，占住院病儿数和病死率的第一位。尤其是婴儿期，重症肺炎的发病率和病死率高。为提高婴儿重症肺炎的治愈率，降低病死率，我院于１９９４年１月～１９９８年３月对婴儿重症肺炎加用丙种球蛋白（ＩＶＩＧ）治疗，取得了满意疗效，现报告如下。１　临床 Pneumonia is the most common pediatric disease, accounting for the number of hospitalized children and mortality first. Especially in infancy, the incidence and severity of severe pneumonia are high. To improve the cure rate of severe pneumonia in infants and reduce the mortality rate, our hospital from January 1994 to March 1998 infants with severe pneumonia plus gamma globulin (IVIG) treatment, and achieved satisfactory results are as follows. 1 clinical