反复呼吸道感染（recurrentrespiratoryiInfection，RRI），是小儿时期的多发病、常见病，严重影响患儿的身体健康。我院1992年11月～1994年7月用聚肌胞预防RRI208例，效果良好，报告如下。1资料与方法1．1临床资料用聚肌胞预防小儿RRI208例为治疗组；选择同期年龄及性别相当的 Recurrent respiratory infections (RRI), is a common disease in infancy, a serious impact on the health of children. Our hospital from November 1992 to July 1994 with poly inoculation to prevent RRI208 cases, the effect is good, the report is as follows. 1 Materials and Methods 1.1 Clinical data Polyribytes prevent RRI208 pediatric cases for the treatment group; select the same age and gender-equivalent