Abstract
Three hundred and ten enterococcal isolates (178Enterococcus faecium, 68E. durans, 49E. faecalis, 8E. italicus, 3E. gallinarum, 3E. casseliflavus, and 1E. hirae) from Slovak Bryndza cheese were evaluated for susceptibility to nine antimicrobial agents (vancomycin, teicoplanin, ampicillin, streptomycin, gentamicin, erythromycin, rifampicin, nitrofurantoin, and ciprofloxacin). All enterococcal isolates from Bryndza cheese were susceptible to ampicillin, streptomycin, gentamicin, vancomycin, and teicoplanin as determined by the disk diffusion method. Vancomycin resistance genesvanA andvanB were not detected. Resistance rates of enterococcal isolates to rifampicin, erythromycin, ciprofloxacin, and nitrofurantoin were 24, 26, 2, and 1 %, respectively. Thirty-six % ofE. faecium isolates and 22 % of theE. faecalis isolates were resistant to erythromycin. Resistance to rifampicin was similar inE. faecium (31 %) andE. faecalis (29 %). BothE. faecium andE. faecalis strains showed the same resistance to ciprofloxacin (2 %).E. durans isolates showed low levels of resistance to rifampicin, erythromycin, ciprofloxacin, and nitrofurantoin (1–4 %). Forty-eight (30 %) of theE. faecium isolates, two (3 %) of theE. durans isolates, and six (12 %) of theE. faecalis isolates exhibited multidrug resistance. The highest frequency of resistant enterococci was observed in Bryndza produced in winter season.
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Abbreviations
- Amp:
-
ampicillin
- Cip:
-
ciprofloxacin
- Ery:
-
erythromycin
- Gen:
-
gentamicin
- Nif:
-
nitrofurantoin
- Rif:
-
rifampicin
- Stm:
-
streptomycin
- Tei:
-
teicoplanin
- Tet:
-
tetracycline
- Van:
-
vancomycin
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This work was supported by grants VEGA 1/2422/05 and VTP 178/2000 of theMinistry of Education of the Slovak Republic.
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Belicová, A., Križková, L., Krajčovič, J. et al. Antimicrobial susceptibility ofEnterococcus species isolated from slovak bryndza cheese. Folia Microbiol 52, 115–119 (2007). https://doi.org/10.1007/BF02932149
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DOI: https://doi.org/10.1007/BF02932149