Antimicrobial susceptibility of enterococci strains isolated from slaughter animals on the data of Hungarian resistance monitoring system from 2001 to 2004

Kaszanyitzky, Éva; Tenk, M.; Ghidán, Ágoston; Fehérvári, G.Y.; Papp, Melitta

doi:10.1016/j.ijfoodmicro.2006.10.004

Cited by 35 publications

(22 citation statements)

References 22 publications

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“…In Denmark, frequencies peaked at 73 to 80% and fell to 5 to 6% (7,18) in poultry. In Italy, VRE prevalence in poultry carcasses and cuts decreased from 14.6% to 8% within 18 months of the 1997 ban (121), and in Hungary, a 4-year study showed not only a decline in prevalence of VRE among slaughtered cattle, swine, and poultry after removal of avoparcin but also a decrease in vancomycin MICs (97). In surveillance studies both before and after the German ban in 1996, Klare et al showed a high frequency of VRE in 1994, followed by a very low frequency of just 25% of poultry food products in 1999 (102 (107).…”

Section: Avoparcinmentioning

confidence: 99%

Food Animals and Antimicrobials: Impacts on Human Health

2011

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SUMMARY Antimicrobials are valuable therapeutics whose efficacy is seriously compromised by the emergence and spread of antimicrobial resistance. The provision of antibiotics to food animals encompasses a wide variety of nontherapeutic purposes that include growth promotion. The concern over resistance emergence and spread to people by nontherapeutic use of antimicrobials has led to conflicted practices and opinions. Considerable evidence supported the removal of nontherapeutic antimicrobials (NTAs) in Europe, based on the “precautionary principle.” Still, concrete scientific evidence of the favorable versus unfavorable consequences of NTAs is not clear to all stakeholders. Substantial data show elevated antibiotic resistance in bacteria associated with animals fed NTAs and their food products. This resistance spreads to other animals and humans—directly by contact and indirectly via the food chain, water, air, and manured and sludge-fertilized soils. Modern genetic techniques are making advances in deciphering the ecological impact of NTAs, but modeling efforts are thwarted by deficits in key knowledge of microbial and antibiotic loads at each stage of the transmission chain. Still, the substantial and expanding volume of evidence reporting animal-to-human spread of resistant bacteria, including that arising from use of NTAs, supports eliminating NTA use in order to reduce the growing environmental load of resistance genes.

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Section: Avoparcinmentioning

confidence: 99%

Food Animals and Antimicrobials: Impacts on Human Health

2011

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“…The major concern is the emergence of vancomycin-resistant enterococci (VRE), since vancomycin is considered one of the last alternatives when treating infections caused by grampositive bacteria (4,5) after most other antibiotics have failed. The risk of transfer of resistance genes from VRE to other pathogenic bacteria such as methicillin-resistant Staphylococcus aureus is also a cause for concern (6).…”

Section: Introductionmentioning

confidence: 99%

Prevalence and antibiotic resistance of vancomycin-resistant enterococci in animal originated foods

Çetinkaya¹,

Muş²,

Soyutemiz³

et al. 2013

Turk J Vet Anim Sci

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The aim of this work is to identify the parameters influencing the flame behavior. Three different species (Pinus pinaster, Pinus halepensis and Erica arborea) involved in forest fire were crushed to decrease the geometric effects on their combustion. The flaming behavior is studied experimentally from unsteady, axisymmetric, non-premixed laminar flames. The distribution of temperature, the flame geometry, the mass loss as well as the gases released by the fuels are measured. This study confirms the role of the mass burning rate of fuels on the flame dynamics. However, this work highlights a second influence for laminar flames: the composition of degradation gases. It affects the flame geometry and changes the combustion kinetics in the reaction zone.

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“…We could not demonstrate any cross-resistance between vancomycin and the other antibiotics tested. Coresistance to tetracycline and erythromycin may be attributed to the maintenance of vancomycin-resistant enterococci (Kaszanyitzky et al, 2006). The molecular identification of enterococci is essential because the classical biochemical reactions are insufficient for distinguishing the strains accurately.…”

Section: Discussionmentioning

confidence: 99%

Distribution and genetic relatedness of vancomycin-resistant enterococci (VRE) isolated from healthy slaughtered chickens in Hungary from 2001 to 2004

Ghidán

Kaszanyitzky²,

Dobay

et al. 2008

Acta Veterinaria Hungarica

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The presence of the vanA gene was determined in enterococci from healthy poultry, originating from the Hungarian resistance monitoring system between 2001 and 2004. Enterococci (n = 562) were collected from intestinal samples of slaughtered broiler chickens. The presence of van genes was detected by polymerase chain reaction (PCR). The vancomycin-resistant enterococcus (VRE) strains carried only the vanA gene. Genus-and species-level identification of the vanA gene carrier strains was carried out by PCR using specific primers. In 2001, 25 out of the 289 isolated strains (8.6%) were vanA carriers (1 Enterococcus mundtii, 13 E. durans and 11 E. faecium). In 2002 (n = 87), 20 (23%) strains were vanA positive (11 E. durans and 9 E. faecium). In 2003 and 2004, none of the strains (n = 95 and 91, respectively) were positive for the most common van genes. In 2003, there was only one strain for which higher minimum inhibitory concentrations (MIC) of vancomycin (4 mg/L) and teicoplanin (8 mg/L) were found. In 2004 there were three strains for which the MIC of vancomycin was 8 mg/L, and 2 strains and 1 strain with teicoplanin MICs of 4 mg/L and 8 mg/L, respectively. The potential similarity of these strains was studied by pulsed-field gel electrophoresis (PFGE). The VRE strains were not closely related to one another. The annual data of vancomycin resistance indicate an association between the recovery of vancomycin-resistant enterococci and the use of avoparcin in animal feeds. This study indicates that with the reduced use of antibiotics in food animals, it is possible to decrease the rate of resistant bacteria. Although the use of avoparcin had been banned in 1998, the VRE strains disappeared only five years later.

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Antimicrobial susceptibility of enterococci strains isolated from slaughter animals on the data of Hungarian resistance monitoring system from 2001 to 2004

Cited by 35 publications

References 22 publications

Food Animals and Antimicrobials: Impacts on Human Health

Food Animals and Antimicrobials: Impacts on Human Health

Prevalence and antibiotic resistance of vancomycin-resistant enterococci in animal originated foods

Distribution and genetic relatedness of vancomycin-resistant enterococci (VRE) isolated from healthy slaughtered chickens in Hungary from 2001 to 2004

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