肺炎是儿童时期的多发病与常见病,虽然治疗手段取得了一定的进步,但是仍是威胁儿童生命的主要疾病之一,每年我国约有2 100万肺炎患儿,其中重症肺炎占7%~13%,是儿童死亡的首要原因~([1-2])。我国5岁以下儿童的肺炎发病为0.06~0.07次/人年,肺炎病死率为4.67%~4.88%,在西部地区及农村地区小儿肺炎形势更严峻,为5岁以下儿童的首位死因~[3]。日喀则市 Pneumonia is a frequent and common childhood disease. Although some progress has been made in the treatment of pneumonia, it is still one of the major diseases that threaten children’s lives. Each year, about 21 million children with pneumonia are pneumonia, of which 7% 13%, is the leading cause of child death ~ ([1-2]). The incidence of pneumonia in children under 5 years of age was 0.06 ~ 0.07 times / person-year in our country, and the mortality rate of pneumonia was 4.67% -4.88%. The pneumonia situation in children in the west and rural areas was even more severe, which was the first cause of death in children younger than 5 years old. ]. Shigatse