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Clin Microbiol Infect. 2005 May;11 Suppl 3:22-8.

Current and emerging serious Gram-positive infections.

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Infectious Diseases Unit, Cisanello Hospital, 56100 Pisa, Italy.


Serious infections caused by Gram-positive pathogens are increasingly difficult to treat because of pathogens such as methicillin-resistant Staphylococcus aureus (MRSA), vancomycin-resistant enterococci (VRE) and penicillin-resistant Streptococcus pneumoniae. The more recent emergence of vancomycin-intermediate and -resistant MRSA (VISA and VRSA) has further compromised treatment options. Reports of resistance to, and clinical failures with newer antimicrobial agents such as linezolid and quinupristin/dalfopristin are also emerging. Consequently, there is a clinical need for new antimicrobial agents that have suitable pharmacokinetic properties and safety profiles, with activity against these Gram-positive pathogens.

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