Fig. 4From: Evolution of mobile genetic element composition in an epidemic methicillin-resistant Staphylococcus aureus: temporal changes correlated with frequent loss and gain eventsPrevalence of analysed MGEs amongst MRSA CC22 isolates between 2001 and 2010. MGEs that showed a significant temporal change in frequency were P1-ermC, P2-hm, SaPIsec, Sa1int and Sa6int. Prevalence shown as % of MRSA CC22 isolates in each yearBack to article page