Recent years have witnessed a rapidly growing crisis in antimicrobial resistance, especially among microorganisms that cause
nosocomial infection. To better understand common risk factors among multiresistant organisms, this review explores risk factors
for nosocomial infection with methicillin-resistant Staphylococcus aureus, vancomycin-resistant enterococcus, Clostridium difficile, extended-spectrum β-lactamase–producing gram-negative bacilli, and Candida.