High Prevalence of Livestock-Associated Methicillin-Resistant Staphylococcus aureus in Hungarian Pig Farms and Genomic Evidence for the Spillover of the Pathogen to Humans

Figure 3

Maximum likelihood phylogeny of Hungarian and Danish livestock-associated methicillin-resistant Staphylococcus aureus (LA-MRSA) isolates. The colors indicate the clusters identified by core genome multilocus sequence typing (cgMLST) analysis. The scale bar indicates substitutions per site; bootstrap values are shown if >90 (red letters). There is a clear clustering of Danish L3 isolates (red triangle) with the Hungarian C2 cluster. The L1 isolates (green circle) are clustered with C1 isolates, but rather distantly-related. L2 isolates (blue square) are more distantly-related to the Hungarian LA-MRSA strains.