Frequencies of virulence genes and pulse field gel electrophoresis fingerprints in Escherichia coli isolates from canine pyometra

•Escherichia coli isolates from canine pyometra had heterogeneous fingerprints.•The fingerprints suggest that the isolates are unlikely to be epidemic clones.•The frequency of yersiniabactin and salmochelin genes was high.•The high frequency of genes encoding these iron uptake systems suggests an in...

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