The effect of hospitalization and antibiotic therapy on the gram-negative fecal flora.

Adult Ampicillin/therapeutic use Anti-Bacterial Agents/therapeutic use Carrier State Chloramphenicol/therapeutic use Cross Infection Feces/microbiology Humans Infections/drug therapy Intestines/microbiology Lincomycin/therapeutic use Male Oxacillin/therapeutic use Penicillin G/therapeutic use Penicillin Resistance Respiratory Tract Infections/drug therapy Streptomycin/therapeutic use Tetracycline/therapeutic use Urinary Tract Infections/drug therapy

Anti-Bacterial Agents Chloramphenicol Ampicillin Lincomycin Tetracycline Penicillin G Oxacillin Streptomycin