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Maximum-likelihood phylogeny of community-onset (CO) and hospital-onset (HO) methicillin-resistant Staphylococcus aureus (MRSA) genomes. A phylogeny was constructed using genome-wide variants identified in 60 MRSA bloodstream infection isolates relative to the TCH1516 USA300 reference genome. Note that 2 isolates that are more distantly related are not displayed for visualization purposes.
