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Strains of MRSA may be epidemic in character( epidemic MRSA) affecting two or more patients and have the ability to spread both within and between hospitals. They also may or may not be multiply antibiotic resistant. That means that except beta-lactams are also resistant to other antimicrobial agents including erythromycin, aminoglycosides, tetracycline, fusidic acid, rifampicin or ciprofloxacin.
Also colonization of MRSA, without observable clinical symptoms, may occur in the nares, axillae, cronic wounds, perineum, in the sputum or urine. One of the most common sites of colonization in both patients and employees is the nose (anterior nares)
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