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广泛应用磺胺药及青霉素使肺炎球菌性肺炎的预后明显改善,典型的大叶性肺炎已很少见到。因此有人认为,肺炎球菌所致的肺部感染减少了。实际并非如此,目前肺炎球菌仍为肺炎的主要致病菌。据美国不同地区调查,肺炎球菌仍为院外肺炎最常见的病原菌。此类病人约占所有需住院病人的26～78%,肺炎球菌肺部感染者的住院病死率为6～19%,其中约20%的成人病人易发生败血症,
The widespread use of sulfa drugs and penicillin significantly improved the prognosis of pneumococcal pneumonia, a typical lobar pneumonia has rarely seen. Therefore, some people think that the pneumococcal lung infection reduced. In fact, pneumococcal pneumococcal pneumonia is still the main pathogen. According to different areas of the United States, pneumococcal pneumonia is still the most common pathogen outside the hospital. These patients account for about 26-78% of all patients requiring hospitalization, and pneumococcal lung infections are 6-19% of patients in hospital, of which approximately 20% are predisposed to sepsis in adult patients,