Epidemic HI2 Plasmids Mobilising the Carbapenemase Gene bla(IMP-4) in Australian Clinical Samples Identified in Multiple Sublineages of Escherichia coli ST216 Colonising Silver Gulls

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TARABAI Hassan WYRSCH E.R. BITAR Ibrahim DOLEJSKÁ Monika DJORDJEVIC S.P.

Rok publikování 2021
Druh Článek v odborném periodiku
Časopis / Zdroj Microorganisms
Fakulta / Pracoviště MU

Lékařská fakulta

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Doi http://dx.doi.org/10.3390/microorganisms9030567
Klíčová slova anthropogenic pollution; ST216; Australian silver gull; urban birds; wildlife; whole genome sequencing; Chroicocephalus novaehollandiae
Popis Escherichia coli ST216, including those that carry bla(KPC-2), bla(FOX-5), bla(CTX-M-15) and mcr-1, have been linked to wild and urban-adapted birds and the colonisation of hospital environments causing recalcitrant, carbapenem-resistant human infections. Here we sequenced 22 multiple-drug resistant ST216 isolates from Australian silver gull chicks sampled from Five Islands, of which 21 carried nine or more antibiotic resistance genes including bla(IMP-4) (n = 21), bla(TEM-1b) (n = 21), aac(3)-IId (n = 20), mph(A) (n = 20), catB3 (n = 20), sul1 (n = 20), aph(3")-Ib (n = 18) and aph(6)-Id (n = 18) on FIB(K) (n = 20), HI2-ST1 (n = 11) and HI2-ST3 (n = 10) plasmids. We show that (i) all HI2 plasmids harbour bla(IMP-4) in resistance regions containing In809 flanked by IS26 (HI2-ST1) or IS15DI (HI2-ST3) and diverse metal resistance genes; (ii) HI2-ST1 plasmids are highly related to plasmids reported in diverse Enterobacteriaceae sourced from humans, companion animals and wildlife; (iii) HI2 were a feature of the Australian gull isolates and were not observed in international ST216 isolates. Phylogenetic analyses identified close relationships between ST216 from Australian gull and clinical isolates from overseas. E. coli ST216 from Australian gulls harbour HI2 plasmids encoding resistance to clinically important antibiotics and metals. Our studies underscore the importance of adopting a one health approach to AMR and pathogen surveillance.
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