Fig. 3.

Pulse field gel electrophoreses analysis of all first methicillin-resistant Staphylococcus aureus (MRSA) strains, isolated from patients admitted to the tetanus ICU during the entire study period (May 2004–April 2006). Band patterns were generated by restriction enzyme digestion of total bacterial DNA. Each row depicts the band pattern of a single isolate and the date of sample collection (first column), date of admission (second column), and date of discharge (third column) of the patient the isolate was cultured from. Identical band patterns indicate clonality as can be expected after exogenous transmission of MRSA