Spa typing was performed using PCR followed by Sanger sequencing, as previously described [24 (link)]. Assignment of spa type Based Upon Repeat Pattern (BURP) analysis for determination of spa clonal complex (spa-CC) was performed using Ridom StaphType. The Ridom SpaServer was used to predict the multi-locus sequence types (STs) as described previously [25 (link)]. Phylogenetic trees were constructed using RAxML Tree, Geneious Version 2022.2, (https://www.geneious.com).
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