Abstract
In the last decade there has been a clear shift in the etiology of bacterimias. Data from the National Nosocomial infects Study (NNIS) show that the Gram-positive cocci have exceeded the aerobic Gram-negative bacteria as the main etiological agents, where coagulase negative (SCN) became the first SCN isolated. The SCN agents were previously considered non-pathogenic or only part of the no…