Plasmids in antibiotic susceptible and antibiotic resistant commensal Escherichia coli from healthy Australian adults

•Plasmids in commensal antibiotic susceptible and resistant E. coli were compared.•Using PCR-based replicon typing only the B/O replicon was resistance-associated.•The B/O replicon PCR also detected Z plasmids.•Further typing tools were developed to detect and distinguish B/O and Z plasmids.•Transfe...

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