[治疗]第十三章 抗菌药物与微生态

Infections caused by bacteria that have acquired multiple mechanisms of antimicrobial drug resistance constitute a growing public-health problem .The bacterium Clostridium difficile，which is normally present in the intestine，may overgrow when antibiotics are taken .In addition to antibiotic use，chemotherapy，advanced age，recent surgery，and history of previous pseudomembranous colitis are risk factors for this condition .