小儿呼吸道感染是儿科常见多发病,不仅发病率高,病情也较严重,其中下呼吸道感染、重症肺炎是儿科四大死亡原因之一,虽然儿科学近年来取得了重大进展,但呼吸道感染在小儿时期的重要性并未显著改变。当今计划生育的实施,独生子女的增多,对消除引起反复下呼吸道感染诸因素,减少下 Pediatric respiratory infection is a common pediatric frequently-occurring disease, not only the high incidence, the condition is more serious, of which lower respiratory tract infection, severe pneumonia is one of the four major causes of pediatric death, although pediatric science has made significant progress in recent years, but respiratory infections in children The importance of the period has not changed significantly. The current implementation of family planning, the increase of only children, to eliminate repeated lower respiratory tract infection caused by various factors, reduce