反复呼吸道感染 (ｒｅｃｕｒｒｅｎｔｒｅｓｐｉｒａｔｏｒｙｉｎｆｅｃｔｉｏｎ ,ＲＲＩ ,简称复感 )是小儿时期的常见病和多发病 ,感染反复发作 ,迁延不愈 ,直接影响着婴幼儿的生长发育和身体健康。感染发作前往往存在一定诱发因素 ,了解这些诱发因素并加以预防 ,可以避免、 Recurrent respiratory tract infections (RRI, referred to as complex sense) is a common and frequently-occurring disease in infancy, recurrent episodes of infection, delayed healing, directly affects the growth and development of infants and young children’s health. Infection before the attack there is often a certain predisposing factors, to understand these predisposing factors and to prevent, to avoid,