各种细菌通过交叉感染、内源性感染、医源性感染等途径导致支气管肺炎 ,其发病率的变化 ,往往导致治疗的失败和加重病情 ,增加病人的死亡率。因此 ,了解支气管肺炎细菌菌种的分布特点及药物敏感性变化 ,是呼吸内科目前关注的热点。笔者从我院呼吸内科 1996年 2月至1998年 6月住 Various bacteria lead to bronchopneumonia through cross-infection, endogenous infection, iatrogenic infection and other pathological changes. The change of their incidence usually leads to failure of treatment and aggravation of illness, and increases the mortality of patients. Therefore, to understand the distribution of bronchial pneumonia bacterial strains and changes in drug sensitivity, respiratory medicine is currently the focus of attention. The author from our hospital respiratory medicine from February 1996 to June 1998 to live