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Bar chart showing the distribution of micro-organisms reported as causing surgical site infections (SSIs) in mandatory orthopaedic categories, England, 2011/12 (MSSA, methicillin-sensitive Staphylococcus aureus; MRSA, methicillin-resistant S. aureus; -ve, negative; ‘Other bacteria’, mostly comprising isolates reported as ‘unspecified diphtheroids’, corynebacterium spp. and ‘other gram-positive organisms’). Adapted with permission from the Health Protection Agency.6
