An official website of the United States government.

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Research Publications (Food Safety)

This page tracks research articles published in national and international peer-reviewed journals. Recent articles are available ahead of print and searchable by Journal, Article Title, and Category. Research publications are tracked across six categories: Bacterial Pathogens, Chemical Contaminants, Natural Toxins, Parasites, Produce Safety, and Viruses. Articles produced by USDA Grant Funding Agencies (requires login) and FDA Grant Funding Agencies (requires login) are also tracked in Scopus.

Displaying 1 - 25 of 38

  1. Genomic diversity, virulence and source of Campylobacter jejuni contamination in Irish poultry slaughterhouses by whole genome sequencing

    • Journal of Applied Microbiology
    • Journal of Applied Microbiology, Accepted Article. Aims The aim was to exploit WGS to assess genomic diversity, identify virulence genes and deduce the proportion of Campylobacter colonised broilers that directly contaminate their carcasses. Methods and Results C.

      • Bacterial pathogens
      • Campylobacter
  2. A carvacrol‐based product reduces Campylobacter jejuni load and alters microbiota composition in the caeca of chickens

    • Journal of Applied Microbiology
    • Journal of Applied Microbiology, Accepted Article. This study was conducted to test the ability of a carvacrol-based formulation (Phodé, France) to decrease the C. jejuni caecal load in inoculated broiler chickens and to study the impact of the C. jejuni inoculation alone or combined with the product, on the caecal microbiota. At day 1, chickens were either fed a control feed or the same diet supplemented with a carvacrol-based product.

      • Bacterial pathogens
      • Campylobacter
  3. The prevalence of Campylobacter spp., Listeria monocytogenes and Shiga toxin‐producing Escherichia coli in Norwegian dairy cattle farms; a comparison between free stall and tie stall housing systems

    • Journal of Applied Microbiology
    • Journal of Applied Microbiology, Accepted Article. This study explored how dairy farm operating systems with free-stall or tie-stall housing and cow hygiene score influence the occurrence of zoonotic bacteria in raw milk. Samples from bulk tank milk, milk filters, feces, feed, teats and teat milk were collected from eleven farms with loose housing and seven farms with tie-stall housing every second month over a period of 11 months and analyzed for the presence of STEC by culturing c

      • Bacterial pathogens
      • Campylobacter
      • Listeria monocytogenes
  4. Competitive growth kinetics of Campylobacter jejuni, Escherichia coli O157:H7 and Listeria monocytogenes with enteric microflora in a small‐intestine model

    • Journal of Applied Microbiology
    • Journal of Applied Microbiology, Volume 132, Issue 2, Page 1467-1478, February 2022. Aims The biological events occurring during human digestion help to understand the mechanisms underlying the dose–response relationships of enteric bacterial pathogens.

      • Bacterial pathogens
      • Campylobacter
      • Enterohemorrhagic Escherichia coli
      • Escherichia coli O157:H7
      • Listeria monocytogenes
  5. Murine colonization model by Campylobacter coli DSPV458

    • Journal of Applied Microbiology
    • Journal of Applied Microbiology, Volume 132, Issue 2, Page 1457-1466, February 2022. Aims To generate a murine experimental model of colonization by Campylobacter coli DSPV458. Methods and Results Twelve adult Balb/cCmedc female mice were housed in a treated group (T-G) and a control group (C-G) for 4 weeks. Both experimental groups received antibiotics for 5 days during the first week.

      • Bacterial pathogens
      • Campylobacter
  6. Campylobacter Express Resistance Array for detecting the presence of fluoroquinolone‐ and macrolide‐resistant Campylobacter jejuni and Campylobacter coli in broiler farms

    • Journal of Applied Microbiology
    • Journal of Applied Microbiology, EarlyView.

      • Bacterial pathogens
      • Campylobacter
  7. The effect of environmental conditions on the occurrence of Campylobacter jejuni and Campylobacter coli in wastewater and surface waters

    • Journal of Applied Microbiology
    • Journal of Applied Microbiology, Volume 132, Issue 1, Page 725-735, January 2022.

      • Bacterial pathogens
      • Campylobacter
  8. Genotypic analyses and antimicrobial resistance profiles of Campylobacter jejuni from crows (Corvidae) of United States and India reflect their respective local antibiotic burdens

    • Journal of Applied Microbiology
    • Journal of Applied Microbiology, Volume 132, Issue 1, Page 696-706, January 2022.

      • Bacterial pathogens
      • Campylobacter
  9. The efficacy of organic acid, medium chain fatty acid and essential oil based broiler treatments; in vitro anti‐Campylobacter jejuni activity and the effect of these chemical‐based treatments on broiler performance

    • Journal of Applied Microbiology
    • Journal of Applied Microbiology, Volume 132, Issue 1, Page 687-695, January 2022.

      • Bacterial pathogens
      • Campylobacter
  10. Campylobacter Express Resistance Array for detecting the presence of fluoroquinolone‐ and macrolide‐resistant Campylobacter jejuni and Campylobacter coli in broiler farms

    • Journal of Applied Microbiology
    • Journal of Applied Microbiology, Accepted Article. Aims
      The aim of the study was to develop a microarray-based method for the detection of antibiotic-resistant Campylobacter in broiler farms to decrease the risk of contamination of chicken meat.

      • Campylobacter
      • Bacterial pathogens
  11. Competitive growth kinetics of Campylobacter jejuni, Escherichia coli O157:H7, and Listeria monocytogenes with enteric microflora in a small‐intestine model

    • Journal of Applied Microbiology
    • Journal of Applied Microbiology, Accepted Article. Abstract
      Aims
      The biological events occurring during human digestion help understand the mechanisms underlying the dose-response relationships of enteric bacterial pathogens. To better understand these events, we investigated the growth and reduction behavior of bacterial pathogens in an in vitro model simulating the environment of the small intestine.

      • Campylobacter
      • Escherichia coli O157:H7
      • Listeria monocytogenes
      • Bacterial pathogens
  12. Genotypic analyses and antimicrobial resistance profiles of Campylobacter jejuni from crows (Corvidae) of US and India reflect their respective local antibiotic burdens of the areas

    • Journal of Applied Microbiology
    • Journal of Applied Microbiology, Accepted Article. Aim
      The study examined the hypothesis that crow-borne Campylobacter can function as environmental reservoirs and indicators of antibiotic resistance (AR) determinants circulating in a human population.

      • Campylobacter
      • Bacterial pathogens
  13. The efficacy of organic acid, medium chain fatty acid, and essential oil based broiler treatments; in vitro anti‐Campylobacter jejuni activity and the effect of these chemical‐based treatments on broiler performance

    • Journal of Applied Microbiology
    • Journal of Applied Microbiology, Accepted Article. Aims
      This research tested the anti-Campylobacter properties of organic acids (OA), medium chain fatty acids (MCFA), and essential oils (EO) in vitro and commenced in vivo suitability testing focused on broiler performance.

      • Campylobacter
      • Bacterial pathogens
  14. The effect of environmental conditions on the occurrence of Campylobacter jejuni and Campylobacter coli in wastewater and surface waters

    • Journal of Applied Microbiology
    • Journal of Applied Microbiology, Accepted Article. Aims
      The purpose of the study was to evaluate the occurrence of Campylobacter jejuni and Campylobacter coli in the aquatic environment based on the water origin, seasonality and physico-chemical properties.

      • Campylobacter
      • Bacterial pathogens
  15. Occurrence of Campylobacter spp. in Swedish calves, common sequence types, and antibiotic resistance patterns

    • Journal of Applied Microbiology
    • Aims Cattle are the second most important cause of human campylobacteriosis, after poultry, but there are knowledge gaps regarding Campylobacter in cattle. This study examined the occurrence of Campylobacter, the species present, sequence types, and antibiotic resistance in Swedish cattle. Methods and Results Feces samples collected from 154 calves on seven Swedish farms, and 69 follow‐up samples from a second collection occasion, were analyzed.

      • Bacterial pathogens
      • Campylobacter
  16. Prevalence, molecular typing and antimicrobial susceptibility of Campylobacter spp. isolates in northern Spain

    • Journal of Applied Microbiology
    • Aim To analyse the prevalence, genetic diversity and antimicrobial susceptibility of Campylobacter spp. in northern Spain. Methods and results Campylobacter was isolated from 139 samples of broiler meat and faecal dropping of broiler and swine with a prevalence of 35.4%, 62% and 42.8%, respectively.

      • Bacterial pathogens
      • Campylobacter
  17. Evaluation of culture‐based and molecular detection methods for Campylobacter in New Zealand raw cows’ milk

    • Journal of Applied Microbiology
    • ABSTRACT Aims This study evaluated the performance of a commercial molecular detection method (mericon Campylobacter triple kit real‐time/quantitative (q)PCR) and a selective plating medium (R&F Campylobacter jejuni/Campylobacter coli Chromogenic Plating Medium (CCPM)) against a culture‐based reference method (ISO 10272‐1:2017 detection procedure B) for the detection of Campylobacter from raw milk enrichment broths.

      • Bacterial pathogens
      • Campylobacter
  18. Factors affecting the species of Campylobacter colonizing chickens reared for meat

    • Journal of Applied Microbiology
    • Aim To investigate factors influencing Campylobacter spp. colonization of broiler chickens. Methods and Results Campylobacters were isolated from caeca from 319 flocks of two different breeds (199 Cobb and 120 Hubbard), reared as standard (199), Freedom Food/corn fed (57), free‐range (47) or organic (16). The standard category exclusively used Cobb birds slaughtered at 38‐41 days.

      • Bacterial pathogens
      • Campylobacter
  19. An improved cleaning system to reduce microbial contamination of poultry transport crates in the UK

    • Journal of Applied Microbiology
    • Aim Following previous research on improving the cleaning of crates used to transport broiler chickens from the farm to the abattoir, a demonstration project was undertaken to investigate improvements in crate washing on a commercial scale. Methods and Results The soak tank of a conventional crate washing system was replaced with a high‐performance washer fitted with high‐volume, high‐pressure nozzles.

      • Campylobacter
      • Bacterial pathogens
  20. An easy‐to‐perform, culture‐free Campylobacter point‐of‐management assay for processing plant applications

    • Journal of Applied Microbiology
    • Aims Current culture‐based methods for detection and determination of Campylobacter levels on processed chickens takes at least two days. Here, we sought to develop a new complete, low‐cost and rapid (approximately 2·5 hours) detection system requiring minimal operator input.

      • Bacterial pathogens
      • Campylobacter
  21. Detection of Campylobacter spp. in water by dead‐end ultrafiltration and application at farm level

    • Journal of Applied Microbiology
    • Aims The purposes were to evaluate the detection of low levels of Campylobacter in water by dead‐end ultrafiltration (DEUF) to determine the sensitivity and suitability for use under field condition. Methods and Results The DEUF technique followed by detection according to ISO 10272 was tested on artificially and naturally contaminated water.

      • Campylobacter
      • Campylobacter
      • Bacterial pathogens
      • Bacterial pathogens
  22. An Assessment of the Microbiological Quality and Safety of Raw Drinking Milk on Retail Sale in England

    • Journal of Applied Microbiology
    • Abstract

      Aims

      This study aimed to review the microbiological results for raw drinking milk (RDM) samples submitted to Public Health England laboratories between 2014 and 2016 in order to produce up-to-date data on the microbiological safety of RDM and inform future risk assessments on its sale.

      • Campylobacter
      • Listeria monocytogenes
      • Bacterial pathogens
  23. Modelling-based identification of factors influencing campylobacters in chicken broiler houses and on carcasses sampled after processing and chilling

    • Journal of Applied Microbiology
    • Abstract

      Aims

      To identify production and processing practices that might reduce Campylobacter numbers contaminating chicken broiler carcasses.

      • Campylobacter
      • Bacterial pathogens
  24. Genetic diversity and antimicrobial resistance profiles of Campylobacter coli and Campylobacter jejuni isolated from broiler chicken in farms and at slaughter in central Italy

    • Journal of Applied Microbiology
    • Abstract

      Aims

      Genetic diversity and antimicrobial resistance of C. coli and C. jejuni were investigated along the broiler chicken production chain in central Italy.

      • Campylobacter
      • Bacterial pathogens
  25. Anti-Campylobacter activity of resveratrol and an extract from waste Pinot noir grape skins and seeds, and resistance of C. jejuni planktonic and biofilm cells, mediated via the CmeABC efflux pump

    • Journal of Applied Microbiology
    • Abstract

      Aims

      To define anti-Campylobacter jejuni activity of an extract from waste skins and seeds of Pinot noir grapes (GSS) and of resveratrol, and possible resistance mechanisms, and the influence of these on C. jejuni morphology.

      • Bacterial pathogens
      • Campylobacter