Dataset Information

First report of the aac(6')-Ib-cr gene in Providencia stuartii isolates in Brazil.

ABSTRACT: INTRODUCTION:The aac(6')-Ib-cr and bla KPC genes are spreading among Enterobacteriaceae species, including Providencia stuartii, in some countries of world. METHODS:These genes were investigated in 28 P. stuartii isolates from a public hospital in Recife, Pernambuco, Brazil, by PCR and sequencing. RESULTS:The aac(6')-Ib-cr gene was detected in 16 resistant isolates, and the bla KPC gene was seen in 14. CONCLUSIONS:The presence of these genes in P. stuartii multi- and extensively drug-resistant isolates indicates that the resistance arsenal of this species is increasing, thus limiting the therapeutic options.

SUBMITTER: Silva SMD

PROVIDER: S-EPMC7670762 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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First report of the aac(6')-Ib-cr gene in Providencia stuartii isolates in Brazil.

Silva Sivoneide Maria da SMD Ramos Bárbara de Azevedo BA Lima Ana Vitória Araújo AVA Sá Rafael Artur Cavalcanti Queiroz de RACQ Lima Jailton Lobo da Costa JLDC Maciel Maria Amélia Vieira MAV Paiva Patrícia Maria Guedes PMG Silva Márcia Vanusa da MVD Correia Maria Tereza Dos Santos MTDS Oliveira Maria Betânia Melo de MBM

Revista da Sociedade Brasileira de Medicina Tropical 20201113

<h4>Introduction</h4>The aac(6')-Ib-cr and bla KPC genes are spreading among Enterobacteriaceae species, including Providencia stuartii, in some countries of world.<h4>Methods</h4>These genes were investigated in 28 P. stuartii isolates from a public hospital in Recife, Pernambuco, Brazil, by PCR and sequencing.<h4>Results</h4>The aac(6')-Ib-cr gene was detected in 16 resistant isolates, and the bla KPC gene was seen in 14.<h4>Conclusions</h4>The presence of these genes in P. stuartii multi- and ...[more]

PMID: 33206872

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Project description:Salmonella enterica and Escherichia coli can inhabit humans and animals from multiple origins. These bacteria are often associated with gastroenteritis in animals, being a frequent cause of resistant zoonotic infections. In fact, bacteria from animals can be transmitted to humans through the food chain and direct contact. In this study, we aimed to assess the antibiotic susceptibility of a collection of S. enterica and E. coli recovered from animals of different sources, performing a genomic comparison of the plasmid-mediated quinolone resistance (PMQR)-producing isolates detected. Antibiotic susceptibility testing revealed a high number of non-wild-type isolates for fluoroquinolones among S. enterica recovered from poultry isolates. In turn, the frequency of non-wild-type E. coli to nalidixic acid and ciprofloxacin was higher in food-producing animals than in companion or zoo animals. Globally, we detected two qnrS1 and two aac(6')-Ib-cr in E. coli isolates recovered from animals of different origins. The genomic characterization of QnrS1-producing E. coli showed high genomic similarity (O86:H12 and ST2297), although they have been recovered from a healthy turtle dove from a Zoo Park, and from a dog showing symptoms of infection. The qnrS1 gene was encoded in a IncN plasmid, also carrying bla TEM-1-containing Tn3. Isolates harboring aac(6')-Ib-cr were detected in two captive bottlenose dolphins, within a time span of two years. The additional antibiotic resistance genes of the two aac(6')-Ib-cr-positive isolates (bla OXA-1, bla TEM-1,bla CTX-M-15, catB3, aac(3)-IIa, and tetA) were enclosed in IncFIA plasmids that differed in a single transposase and 60 single nucleotide variants. The isolates could be assigned to the same genetic sublineage-ST131 fimH30-Rx (O25:H4), confirming clonal spread. PMQR-producing isolates were associated with symptomatic and asymptomatic hosts, which highlight the aptitude of E. coli to act as silent vehicles, allowing the accumulation of antibiotic resistance genes, mobile genetic elements and other relevant pathogenicity determinants. Continuous monitoring of health and sick animals toward the presence of PMQR should be strongly encouraged in order to restrain the clonal spread of these antibiotic resistant strains.

Dataset Information

First report of the aac(6')-Ib-cr gene in Providencia stuartii isolates in Brazil.

Publications

First report of the aac(6')-Ib-cr gene in Providencia stuartii isolates in Brazil.

Similar Datasets

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