Characterization of quinolone resistance in Salmonella spp. isolates from food products and human samples in Brazil
Braz. j. microbiol
; 47(1): 196-201, Jan.-Mar. 2016. tab
Article
in En
| LILACS
| ID: lil-775099
Responsible library:
BR1.1
ABSTRACT
Abstract Non-typhoidal salmonellosis is an important zoonotic disease caused by Salmonella enterica. The aim of this study was to investigate the prevalence of plasmid-mediated quinolone resistance in Salmonella spp. and its association with fluoroquinolone susceptibility in Brazil. A total of 129 NTS isolates (samples from human origin, food from animal origin, environmental, and animal) grouped as from animal (n = 62) and human (n = 67) food were evaluated between 2009 and 2013. These isolates were investigated through serotyping, antimicrobial susceptibility testing, and the presence of plasmid-mediated quinolone resistance (PMQR) genes (qnr, aac(6')-Ib) and associated integron genes (integrase, and conserved integron region). Resistance to quinolones and/or fluoroquinolones, from first to third generations, was observed. Fifteen isolates were positive for the presence of qnr genes (8 qnrS, 6 qnrB, and 1 qnrD) and twenty three of aac(6')-Ib. The conserved integron region was detected in 67 isolates as variable regions, from ±600 to >1000 pb. The spread of NTS involving PMQR carriers is of serious concern and should be carefully monitored.
Key words
Full text:
1
Index:
LILACS
Main subject:
Salmonella Infections
/
Quinolones
/
Salmonella enterica
/
Drug Resistance, Bacterial
/
Environmental Microbiology
/
Food Microbiology
/
Anti-Bacterial Agents
Type of study:
Risk_factors_studies
Limits:
Humans
Country/Region as subject:
America do sul
/
Brasil
Language:
En
Journal:
Braz. j. microbiol
Journal subject:
MICROBIOLOGIA
Year:
2016
Type:
Article