ArticleBMC research notes2014
Virulence factors, serogroups and antimicrobial resistance properties of Escherichia coli strains in fermented dairy products.
Article in BMC research notes, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 1 of them a synthesis that pooled it.
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Who cites it
38 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Antimicrobial-resistant foodborne pathogens in the Middle East: a systematic review.Environmental science and pollution research international · 2021Pooled it
- Virulence and Antimicrobial Resistance Traits ofAntibiotics (Basel, Switzerland) · 2026Article
- Serogroups, antibiotic resistance profiles and virulence factors of non-O157 Shiga-toxin producing Escherichia coli from ovine and caprine.Scientific reports · 2026Article
- Prevalence of extended-spectrumFrontiers in veterinary science · 2026Article
- Genotypic Profiling of Virulence and Antibiotic Resistance Genes ofInternational journal of microbiology · 2026Article
- Shiga toxin-producingMicrobiology and molecular biology reviews : MMBR · 2025Review
- Antimicrobial Resistance and Virulence Determinants ofAnimals : an open access journal from MDPI · 2025Article
- The Invisible Threat of Antibiotic Resistance in Food.Antibiotics (Basel, Switzerland) · 2025Review
- An investigative study on Yersinia enterocolitica in animals, humans and dried milk in New Valley Governorate, Egypt.BMC microbiology · 2024Article
- Article
- Multiple-Drug Resistant Shiga Toxin-ProducingTropical medicine and infectious disease · 2024Article
- Prevalence of multidrug-resistantFrontiers in microbiology · 2024Article
- Occurrence and antimicrobial susceptibility patterns of Escherichia coli and Escherichia coli O157 isolated from cow milk and milk products, Ethiopia.Scientific reports · 2023Article
- Antimicrobial resistance of bacterial pathogens isolated from the infections of post maxillofacial surgery.Journal of medicine and life · 2022Article
- Evaluation of chest CT-scan appearances of COVID-19 according to RSNA classification system.Journal of family medicine and primary care · 2022Article
- Occurrence of multiple drug-resistant Shiga toxigenicJournal of food science and technology · 2022Article
- Molecular characterization and antimicrobial resistance of Enterococcus faecalis isolated from seafood samples.Veterinary medicine and science · 2022Article
- Occurrence and D-Tryptophan Application for Controlling the Growth of Multidrug-Resistant Non-O157 Shiga Toxin-ProducingAnimals : an open access journal from MDPI · 2022Article
- Evaluation of Virulence Factors, Antibiotic Resistance, and Biofilm Formation ofFoods (Basel, Switzerland) · 2022Article
- Two Faces of Fermented Foods-The Benefits and Threats of Its Consumption.Frontiers in microbiology · 2022Review
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundFrom a clinical perspective, it is essential to know the microbial safety of fermented dairy products. Doogh and kashk are fermented dairies. These products are used by millions of people but their microbial qualities are unknown. Shiga toxin producing Escherichia coli (STEC) is one of the most commonly detected pathogens in the cases of food poisoning and food-borne illnesses. The present investigation was carried out in order to study the molecular characterization and antimicrobial resistance properties of STEC strains isolated from fermented dairy products.
methodsSix hundred fermented dairy samples were collected and immediately transferred to the laboratory. All samples were cultured immediately and those that were E. coli-positive were analyzed for the presence of O157 , O26, O103, O111, O145, O45, O91, O113, O121 and O128 STEC serogroups, tetA, tetB, blaSHV, CITM, cmlA, cat1, aadA1, dfrA1, qnr, aac (3)-IV, sul1 and ereA antibiotic resistance genes and stx1, stx2, eaeA, ehly, cnf1, cnf2, iutA, cdtB, papA, traT, sfaS and fyuA virulence factors using PCR. Antimicrobial susceptibility testing was performed also using disk diffusion methodology with Mueller-Hinton agar.
resultsFifty out of 600 (8.33%) dairy samples harbored E. coli. In addition, yoghurt was the most commonly contaminated dairy. O157 (26%) and O26 (12%) were the most commonly detected serogroups. A significant difference was found between the frequency of Attaching and Effacing E. coli and Enterohaemorrhagic E. coli (P <0.05). Stx1 (44%), eae (36%), papA (32%) stx2 (30%), and ehly (28%) were the most commonly detected virulence factors. The genes encode resistance against tetracycline (tetA and tetB) (76% and 70%, respectively), cephalothin (blaSHV) (38%), ampicillin (CITM) (36%) and gentamicin (aac (3)-IV) (32%) were the most commonly detected. High resistance levels to tetracycline (84%), penicillin (46%), ampicillin (38%) and streptomycin (36%) were observed.
conclusionFermented dairy products can easily become contaminated by antibiotic resistant STEC strains. Our findings should raise awareness about antibiotic resistance in Iran. Clinicians should exercise caution when prescribing antibiotics, especially in veterinary treatments.
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