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Microbios. 1992;71(287):95-103.

In vitro activity of fosfomycin against 'problem' gram-positive cocci.

Author information

1
Department of Medical Microbiology, Royal Free Hospital School of Medicine, University of London, Great Britain.

Abstract

Fosfomycin was active in vitro against 54 of 60 'problem' Gram-positive cocci (20 methicillin-resistant Staphylococcus aureus, 20 coagulase-negative staphylococci and 20 enterococci). Its activity was significantly greater under anaerobic conditions, especially against coagulase-negative staphylococci. Mutants resistant to fosfomycin were readily demonstrated, but their growth was prevented by rifampicin or ciprofloxacin. The combinations rifampicin+fosfomycin and ciprofloxacin+fosfomycin showed MIC synergy. It is concluded that fosfomycin in an appropriate combination would be a valuable addition to the small and dwindling range of antibiotics active against problem Gram-positive cocci.

PMID:
1453987
[Indexed for MEDLINE]

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