Objective To compare the efficacy and safety of sparfloxacin(SPFX)and ofloxacin(OFLX)in the treatment of respiratory tract bacterial infections(RTBI)in the senile patients.

• 目的对照研究司帕沙星（SPFX）与氧氟沙星（OFLX）治疗老年患者呼吸道细菌感染（RTBI）的临床疗效及安全性。