First report of mcr-1-harboring Salmonella enterica serovar Schwarzengrund isolated from poultry meat in Brazil

Brazilian poultry meat samples were screened for colistin-resistant Salmonella enterica. Sixty Salmonella isolates were tested for in vitro colistin resistance and mcr-1, mcr-2, mcr-3 and mcr-4 genes. Two isolates harbored the mcr-1 gene and whole-genome analysis determined the serovar to be Schwarz...

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Bibliographic Details
Published in:Diagnostic microbiology and infectious disease 2019-04, Vol.93 (4), p.376-379
Main Authors: Moreno, Luisa Z., Gomes, Vasco T.M., Moreira, Jéssica, de Oliveira, Carolina H., Peres, Bárbara P., Silva, Ana Paula S., Thakur, Siddhartha, La Ragione, Roberto M., Moreno, Andrea M.
Format: Article
Language:English
Subjects:
Animals
Anti-Bacterial Agents - pharmacology
Brazil
Colistin - pharmacology
Colistin resistance
Drug Resistance, Bacterial
Escherichia coli Proteins - genetics
Genotype
Meat - microbiology
Microbial Sensitivity Tests
Multilocus Sequence Typing
Plasmid
Plasmids - analysis
Poultry
Salmonella enterica
Salmonella enterica - drug effects
Salmonella enterica - genetics
Salmonella enterica - isolation & purification
Schwarzengrund
Serogroup
Whole Genome Sequencing
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Summary:Brazilian poultry meat samples were screened for colistin-resistant Salmonella enterica. Sixty Salmonella isolates were tested for in vitro colistin resistance and mcr-1, mcr-2, mcr-3 and mcr-4 genes. Two isolates harbored the mcr-1 gene and whole-genome analysis determined the serovar to be Schwarzengrund, ST96, harboring the IncX4 plasmid. This is the first report of mcr-1-harboring Salmonella enterica serovar Schwarzengrund in Brazil. •First report of mcr-1-harboring Salmonella enterica serovar Schwarzengrund.•Assessment of commercial poultry meat as reservoir of colistin-resistant Salmonella.•Colistin-resistant Salmonella did not present multidrug resistance phenotype.
ISSN:0732-8893
1879-0070
DOI:10.1016/j.diagmicrobio.2018.10.016