+ 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

Co-occurrence of antimicrobial resistance and virulence determinants in enterococci isolated from traditionally fermented fish products



Co-occurrence of antimicrobial resistance and virulence determinants in enterococci isolated from traditionally fermented fish products



Journal of Global Antimicrobial Resistance 17: 79-83



Fermented foods frequently consumed in Northeast India can act as a reservoir for disseminating pathogenic organisms. Enterococci are often responsible for contamination of food products. This study investigated the antimicrobial resistance and co-existing virulence determinants of enterococci found in traditionally processed foods in India. A total of 38 enterococci isolates identified as Enterococcus faecalis isolated from fermented fish samples from retail markets of Northeast India were selected for screening of pathogenic traits. Of the 38 isolates, 8 (21%) were able to hydrolyse gelatin and 13 (34%) showed protease activity. Screening for haemolytic activity of the isolates showed no positive test on sheep blood. The presence of virulence genes (gelE, agg, esp, cpd, efaAfs and cylA) was investigated by PCR. gelE, agg and esp were present in 17, 13 and 4 isolates, respectively. cpd and efaAfs were found in all isolates, whereas cylA was not detected. High resistance percentages to various antibiotics included kanamycin (63%), vancomycin and gentamicin (58%), tetracycline (53%) and rifampicin (50%). The vanA genotype was confirmed in 15 multidrug- and vancomycin-resistant strains. The simultaneous occurrence of virulence determinants and antimicrobial resistance in enterococci prevalent in the fermented fish products studied poses a potential threat of transmission to humans through the food chain. This study highlights the importance of E. faecalis as a reservoir of antimicrobial resistance and virulence factors and their potential transfer to humans. The findings reopen the issue of food safety regarding enterococci prevalent in traditionally processed fish products in the region.

Please choose payment method:






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

Accession: 065740334

Download citation: RISBibTeXText

PMID: 30448521

DOI: 10.1016/j.jgar.2018.11.012


Related references

Antibiotic resistance and virulence factors among Enterococci isolated from chouriço, a traditional Portuguese dry fermented sausage. Journal of Food Protection 74(3): 465-469, 2011

Evaluation of the extent of spreading of virulence factors and antibiotic resistance in Enterococci isolated from fermented and unfermented foods. Annals of Microbiology 66(2): 577-585, 2016

Antibiotic susceptibility of enterococci isolated from traditional fermented meat products. Food Microbiology 26(5): 527-532, 2009

Virulence factors among enterococci isolated from traditional fermented meat products produced in the North of Portugal. Food Control: 5, 651-656, 2010

Prevalence, antibiotic resistance and virulence determinants of enterococci in ready-to-eat food. 2007

Detection of Antibiotic Resistance and Resistance Genes in Enterococci Isolated from Sucuk, a Traditional Turkish Dry-Fermented Sausage. Korean Journal for Food Science of Animal Resources 37(5): 670-681, 2017

Erratum: Detection of Antibiotic Resistance and Resistance Genes in Enterococci Isolated from Sucuk, a Traditional Turkish Dry-Fermented Sausage. Korean Journal for Food Science of Animal Resources 37(6): 963-963, 2018

Virulence and Antibiotic Resistance of Enterococci Isolated from Healthy Breastfed Infants. Microbial Drug Resistance 24(1): 63-69, 2017

Incidence of virulence factors and antibiotic resistance among enterococci isolated from food. Applied and environmental microbiology 67(9): 4385-4389, 2001

Virulence traits and antibiotic resistance among enterococci isolated from dogs with periodontal disease. Comparative Immunology Microbiology and Infectious Diseases 46: 27-31, 2016

Antibiotic Resistance and Virulence Among Enterococci Isolated from Teluk Kemang Beach, Malaysia. Water Quality, Exposure and Health 4(2): 113-122, 2012

Antibiotic resistance and virulence factors among clinical and food enterococci isolated in Slovakia. Folia Microbiologica 49(6): 763-768, 2004

Antibiotic resistance, virulence determinants and production of biogenic amines among enterococci from ovine, feline, canine, porcine and human milk. Bmc Microbiology 13: 288, 2013

Antibiotic Resistance and Virulence Traits of Enterococci Isolated from Baylough, an Irish Artisanal Cheese. Journal of Food Protection 67(9): 1948-1952, 2004

Antibiotic resistance and virulence of faecal enterococci isolated from food-producing animals in Tunisia. Annals of Microbiology 65(2): 695-702, 2015