TITLE

THE SITUATION OF ANTIMICROBIAL RESISTANCE OF ENTERIC BACTERIA ISOLATED FROM ANIMAL ORIGIN TO QUINOLONES AND FLUOROQUINOLONES

AUTHOR(S)
Ružauskas, Modestas; Šiugždinienė, Rita; Šeputienė, Vaida; Sužiedėlienė, Edita; Virgailis, Marius; Daugelavičius, Rimantas; Špakauskas, Vytautas; Zienius, Dainius; Šengaut, Jakov; Pavilonis, Alvydas
PUB. DATE
June 2010
SOURCE
Veterinarija ir Zootechnika;2010, Vol. 50 Issue 72, p73
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The aim of this study was to determine minimal inhibitory concentration (MIC) values of Escherichia coli and Salmonella enterica as the most important bacteria family Enterobacteriaceae and to evaluate their clinical and epidemiological resistance to quinolones and fluoroquinolones. One hundred and thirty seven strains of Escherichia coli and 75 strains of Salmonella enterica from different species of animals from different farms (cattle, pigs and poultry) were tested for susceptibility. Nalidixic acid and ciprofloxacin were selected as representatives of quinolones and fluoroquinolones respectively. Results showed that total clinical resistance of E. coli isolated from clinical material of animals to nalidixic acid was 44.5%, to ciprofloxacin - and 34.4%. In addition, 22.0% of total E. coli were highly resistant to nalidixic acid with MIC value of 256 mg/L and 12.0% of E. coli MIC values to ciprofloxacin were also high - 8 mg/L. S. enterica demonstrated frequent resistance to nalidixic acid (41.3%) however only 5.3% were resistant to ciprofloxacin with lowest breakpoint value - 0.5 mg/L. E. coli isolates from poultry showed to be more frequent resistant to quinolones and fluoroquinolones. Cattle isolates had the lowest frequency of resistance. Epidemiological susceptibility was counted according to cut-off values (EUCAST). Results showed that 53.0% of E. coli had MIC values higher than epidemiological cut-off values to nalidixic acid and 34.0% - to ciprofloxacin. 41.0% of Salmonella were epidemiologically resistant to both nalidixic acid and ciprofloxacin and that fact may demonstrate increasing resistance of Salmonella to fluoroquinolones.
ACCESSION #
52842574

 

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