Multihospital surveillance of nosocomial methicillin-resistant Staphylococcus aureus, vancomycin-resistant enterococcus, and Clostridium difficile: Analysis of a 4-year data-sharing project, 1999-2002

Benchmarks were established to compare nosocomial MRSA, VRE, and CDIF rates. Although significant changes in rates were observed, no attempt was made to establish a causal relationship between infection control practices and observed rates. However, a secondary gain was achieved through sharing best practices.