Fig. 1

The epidemiology and phylogeny of MRSA in the Galway study facility. a Time line of positive and negative swabs. Blue, pink, and orange shapes representing ST22, ST5, and an MRSA-positive sample that could not be recovered on re-culture, respectively. b Maximum likelihood tree generated from core genome SNPs of ST22 MRSA isolates from the Galway LTCF residents (blue), environmental swabs (black), and isolates from Galway University Hospital (red). The outgroup is MSSA476. A tree with bootstrap values is shown in Additional file 1