Additionally, spvC and rck were detected in one S. Wandsworth
isolate. Interestingly, this S. Wandsworth isolate (2056-2) and one
S. Typhimurium (2056-1), isolated from the same sample, had the
same virulotype. Plasmids are associated with mobile DNA elements.
To our knowledge, there are no reports of plasmid-borne
virulence genes in S. Wandsworth, implying that horizontal gene
transfer may have occurred.