+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Detection and characterization of vancomycin-resistant enterococci in farm animals and raw meat products in Italy

Detection and characterization of vancomycin-resistant enterococci in farm animals and raw meat products in Italy

Microbial Drug Resistance 6(4): 313-318

The emergence of vancomycin-resistant enterococci (VRE) in Europe has been ascribed to the long-time use of the glycopeptide antibiotic avoparcin as feed additive in food animals, until its ban in 1997 in EU. The pres- ence of VRE in food of animal origin is believed to represent a potential risk for the consumer. We studied the fecal carriage of VRE in broiler chickens and slaughter pigs in Italy before the avoparcin ban and eval- uated the impact of avoparcin withdrawal on the presence of VRE in raw meat products. Broilers and pigs were both found to be frequently colonized by VRE, as 36% and 24.6% of the flocks or the herds, respec- tively, were positive. Molecular typing of VRE strains by PFGE showed that animals housed in different pens within the same farm were colonized by clonally related strains. After the avoparcin ban, a decrease in the rate of VRE contamination in meat products was observed. Such a decrease was statistically significant in poultry (from 18.8% to 9.6%) but not in pork products (from 9.7% to 6.9%). The majority of VRE from all sources carried the vanA resistance gene and included Enterococcus faecium, E. faecalis, E. hirae, E. durans, and E. gallinarum. None of the strains carried the vanB gene, whereas constitutively resistant vanC-positive strains were frequently found. Our results show that avoparcin withdrawal has been successful in reducing VRE contamination in meat products. However, this measure needs to be complemented by a prudent use of glycopeptide antibiotics in human medicine.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 045736863

Download citation: RISBibTeXText

PMID: 11272260

DOI: 10.1089/mdr.2000.6.313

Related references

Antimicrobial susceptibility of vancomycin-susceptible and -resistant enterococci isolated in Italy from raw meat products, farm animals, and human infections. International Journal of Food Microbiology 97(1): 17-22, 2004

Presence of vancomycin-resistant enterococci in farm and pet animals. Antimicrobial Agents and ChemoTherapy 40(10): 2285-2287, 1996

Occurrence of vancomycin-resistant enterococci in meat products. Industrie Alimentari 41(411): 158-162, 166, 2002

Vancomycin resistant enterococci in farm animals - occurrence and importance. Infection Ecology and Epidemiology 2:, 2012

Vancomycin resistant enterococci in farm animals - occurrence and importance. Infection Ecology & Epidemiology 2(1): 16959, 2012

The potential of vancomycin-resistant enterococci to persist in fermented and pasteurised meat products. International Journal of Food Microbiology 88(1): 11-18, 2003

Epidemiology of vancomycin-resistant enterococci in the community and the relevance of farm animals to human infection. Journal Of Hospital Infection. 37(2): 89-101, 1997

Possibility of vancomycin-resistant enterococci transmission from human to broilers, and possibility of using the vancomycin-resistant gram-positive cocci as a model in a screening study of vancomycin-resistant enterococci infection in the broiler chick. Animal Science Journal 77(5): 538-544, 2006

Prevalence, Antimicrobial Resistance, and Genotypic Characterization of Vancomycin-Resistant Enterococci in Meat Preparations. Journal of Food Protection 79(5): 748-756, 2016

Characterization of vanA vancomycin-resistant enterococci isolated from humans and animals in Taiwan. Abstracts of the General Meeting of the American Society for Microbiology 103: C-412, 2003

Use of a commercial agar for detection and characterization of vancomycin-resistant enterococci. Abstracts of the Interscience Conference on Antimicrobial Agents & Chemotherapy 36: 68, 1996

Molecular characterization of vancomycin-resistant enterococci from hospitalized patients and poultry products in The Netherlands. Journal of Clinical Microbiology 36(7): 1927-1932, 1998

Characterization of fecal vancomycin-resistant enterococci with acquired and intrinsic resistance mechanisms in wild animals, Spain. Microbial Ecology 72(4): 813-820, 2016

The effect of active surveillance for vancomycin-resistant enterococci in high-risk units on vancomycin-resistant enterococci incidence hospital-wide. American Journal of Infection Control 30(1): 40-43, 2002

Antibiotic activity against urinary tract infection (UTI) isolates of vancomycin-resistant enterococci (VRE): results from the 2002 North American Vancomycin Resistant Enterococci Susceptibility Study (NAVRESS). Journal of Antimicrobial ChemoTherapy 52(3): 382-388, 2003