Incidence and prevalence of methicillin-resistant Staphylococcus aureus nasal carriage among healthcare workers in geriatric departments: relevance to preventive measures.

Methicillin-resistant Staphylococcs aureus (MRSA) nasal carriage was assessed among healthcare workers caring for elderly patients in contact precautions in geriatric departments. Monthly incidence ranged from 0% to 3.3%.