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Phage (New Rochelle) ; 3(1): 50-58, 2022 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-36147219

RESUMO

Background: Enterobacter spp. are opportunistic pathogens that cause nosocomial infections. Bacteriophages could be used to treat antibiotic-resistant Enterobacter infections. Materials and Methods: We used 10 genetically diverse clinical Enterobacter spp. isolates to identify lytic bacteriophages in hospital and municipal wastewater. Comparative genomics was performed on host bacterial isolates and isolated phages. Activity of each phage against all 10 host isolates was determined. We also tested phage activity against paired isolates from two patients who developed ceftazidime-avibactam resistance. Results: Bacteria belonged to three Enterobacter species and Klebsiella aerogenes. We isolated 12 bacteriophages, most of which belonged to the Myoviridae and Autographiviridae families. Most phages were able to lyse multiple bacterial isolates, and many lysed isolates of different species. Ceftazidime-avibactam-resistant isolates were still phage susceptible, and one isolate showed increased susceptibility compared with the parent isolate. Conclusion: The phages we isolated expand the diversity of Enterobacter-targeting phages, and could be useful for treating antibiotic-resistant Enterobacter infections.

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