Bacterial colonization and clinical superinfection of the respiratory tract complicating antibiotic treatment of pneumonia.

Adult Age Factors Aged Anti-Bacterial Agents/therapeutic use Bacteria/growth & development Cross Infection/diagnosis,epidemiology,etiology,mortality Drug Resistance, Microbial Escherichia coli/isolation & purification Female Humans Klebsiella/isolation & purification Male Middle Aged Pneumonia/drug therapy Prospective Studies Respiratory Tract Infections/diagnosis,epidemiology,etiology,mortality Staphylococcal Infections/epidemiology

Anti-Bacterial Agents