Genomic and Clinical Characterization of IMP-1-Producing Multidrug-Resistant Acinetobacter bereziniae Isolates from Bloodstream Infections in a Brazilian Tertiary Hospital.

Autor: Tavares LCB; Centro de Bacteriologia, Instituto Adolfo Lutz, São Paulo, Brazil.; Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil., Cunha MPV; Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo, São Paulo, Brazil., de Vasconcellos FM; Centro de Bacteriologia, Instituto Adolfo Lutz, São Paulo, Brazil., Bertani AMJ; Centro de Bacteriologia, Instituto Adolfo Lutz, São Paulo, Brazil., de Barcellos TAF; Centro de Bacteriologia, Instituto Adolfo Lutz, São Paulo, Brazil.; Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil., Bueno MS; Centro de Bacteriologia, Instituto Adolfo Lutz, São Paulo, Brazil.; Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil., Santos CA; Centro de Bacteriologia, Instituto Adolfo Lutz, São Paulo, Brazil., Sant'Ana DA; Centro de Bacteriologia, Instituto Adolfo Lutz, São Paulo, Brazil., Ferreira AM; Faculdade de Medicina de Botucatu, Universidade Estadual Paulista, Botucatu, Brazil., Mondelli AL; Faculdade de Medicina de Botucatu, Universidade Estadual Paulista, Botucatu, Brazil., Montelli AC; Faculdade de Medicina de Botucatu, Universidade Estadual Paulista, Botucatu, Brazil., Sadatsune T; Instituto de Biociências de Botucatu, Universidade Estadual Paulista, Botucatu, Brazil., Sacchi CT; Laboratório Estratégico, Instituto Adolfo Lutz, São Paulo, Brazil., Gonçalves CR; Laboratório Estratégico, Instituto Adolfo Lutz, São Paulo, Brazil., Tiba-Casas MR; Centro de Bacteriologia, Instituto Adolfo Lutz, São Paulo, Brazil., Camargo CH; Centro de Bacteriologia, Instituto Adolfo Lutz, São Paulo, Brazil.; Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil.
Jazyk: angličtina
Zdroj: Microbial drug resistance (Larchmont, N.Y.) [Microb Drug Resist] 2020 Nov; Vol. 26 (11), pp. 1399-1404. Date of Electronic Publication: 2020 Mar 09.
DOI: 10.1089/mdr.2019.0210
Abstrakt: Acinetobacter baumannii is the main species of the Acinetobacter genus; however, non- baumannii Acinetobacter (NBA) species causing infections have been described for the past years, as well as antimicrobial resistance. In this study, we describe the occurrence of two multidrug-resistant (MDR) IMP-1-producing Acinetobacter bereziniae isolates recovered from bloodstream infections in different patients but in the same intensive care unit among 134 carbapenem-resistant Acinetobacter screened. Antimicrobial susceptibility testing revealed resistance to carbapenems, extended spectrum, and antipseudomonad cephalosporins, amikacin, and trimethoprim-sulfamethoxazole. Both A. bereziniae isolates shared the same Apa I-pulsed-field gel electrophoresis (PFGE) pattern. Whole-genome sequencing of both isolates revealed that bla IMP-1 was embedded into an In86 Class I integron carrying also sul1 , aac(6')-31 , and aadA genes. A new sequence type (ST1309 Pasteur) was deposited. The virulence genes lpxC and ompA , seen in A. baumannii , were detected in the A. bereziniae strains. Recognition of A. bereziniae causing invasive MDR infection underscores the role of NBA species as human pathogens especially in at-risk patients.
Databáze: MEDLINE