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U.S. Department of Agriculture
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  3. Research Publications (Food Safety)

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 51 - 75 of 189

  1. Persistence of Escherichia coli in the microbiomes of red Romaine lettuce (Lactuca sativa cv. ‘Outredgeous’) and mizuna mustard (Brassica rapa var. japonica) - does seed sanitization matter?

    • BMC Microbiology

    • Background

      • Bacterial pathogens

  2. Impact of the gut microecology on Campylobacter presence revealed by comparisons of the gut microbiota from chickens raised on litter or in individual cages

    • BMC Microbiology

    • Background

      • Campylobacter
      • Bacterial pathogens

  3. Transcriptional analysis reveals specific niche factors and response to environmental stresses of enterohemorrhagic Escherichia coli O157:H7 in bovine digestive contents

    • BMC Microbiology

    • Abstract
      Background
      Enterohemorrhagic Escherichia coli (EHEC) are responsible for severe diseases in humans, and the ruminant digestive tract is considered as their main reservoir. Their excretion in bovine feces leads to the contamination of foods and the environment. Thus, providing knowledge of processes used by EHEC to survive and/or develop all along the bovine gut represents a major step for strategies implementation.

      • Escherichia coli O157:H7
      • Bacterial pathogens

  4. Antibiotic resistance in the pathogenic foodborne bacteria isolated from raw kebab and hamburger: phenotypic and genotypic study

    • BMC Microbiology

    • Background

  5. Rickettsia burneti and Brucella melitensis co-infection: a case report and literature review

    • BMC Microbiology

    • Rickettsia is the pathogen of Q fever, Brucella ovis is the pathogen of brucellosis, and both of them are Gram-negative bacteria which are parasitic in cells. The mixed infection of rickettsia and Brucella ovis is rarely reported in clinic. Early diagnosis and treatment are of great significance to the treatment and prognosis of brucellosis and Q fever. Here, we report a case of co-infection Rickettsia burneti and Brucella melitensis.

      • Bacterial pathogens

  6. Genetic and antimicrobial resistance profiles of non-O157 Shiga toxin-producing Escherichia coli from different sources in Egypt

    • BMC Microbiology

    • Background
      The Shiga toxin-producing Escherichia coli (STEC) represented a great risk to public health. In this study, 60 STEC strains recovered from broiler and duck fecal samples, cow’s milk, cattle beef, human urine, and ear discharge were screened for 12 virulence genes, phenotypic and genotypic antimicrobial resistance, and multiple-locus variable-number tandem-repeat analysis (MLVA).

      • Bacterial pathogens

  7. Genetic fingerprinting and aflatoxin production of Aspergillus section Flavi associated with groundnut in eastern Ethiopia

    • BMC Microbiology

    • Abstract
      Background
      Aspergillus species cause aflatoxin contamination in groundnut kernels, being a health threat in agricultural products and leading to commodity rejection by domestic and international markets. Presence of Aspergillus flavus and A. parasiticus colonizing groundnut in eastern Ethiopia, as well as presence of aflatoxins have been reported, though in this region, no genetic studies have been done of these species in relation to their aflatoxin production.

      • Aflatoxins
      • Natural toxins

  8. Correction to: Human microbiota modulation via QseC sensor kinase mediated in the Escherichia coli O104:H4 outbreak strain infection in microbiome model

    • BMC Microbiology
      • Bacterial pathogens

  9. Analysis of the assessment of antimicrobial susceptibility. Non-typhoid Salmonella in meat and meat products as model (systematic review)

    • BMC Microbiology

    • Abstract
      Background

      • Salmonella
      • Bacterial pathogens

  10. Prevalence and mechanisms of antibiotic resistance in Escherichia coli isolated from mastitic dairy cattle in Canada

    • BMC Microbiology

    • Abstract
      Background
      Bovine mastitis is the most common infectious disease in dairy cattle with major economic implications for the dairy industry worldwide. Continuous monitoring for the emergence of antimicrobial resistance (AMR) among bacterial isolates from dairy farms is vital not only for animal husbandry but also for public health.

      • Bacterial pathogens

  11. Virulence factors and molecular characteristics of Shigella flexneri isolated from calves with diarrhea

    • BMC Microbiology

    • Background
      The natural hosts of Shigella are typically humans and other primates, but it has been shown that the host range of Shigella has expanded to many animals. Although Shigella is becoming a major threat to animals, there is limited information on the genetic background of local strains. The purpose of this study was to assess the presence of virulence factors and the molecular characteristics of S. flexneri isolated from calves with diarrhea.

      • Shigella
      • Bacterial pathogens

  12. Assessment of the sanitary quality of ready to eat sesame, a low moisture street food from Burkina Faso

    • BMC Microbiology

    • Background

  13. A newly developed paper embedded microchip based on LAMP for rapid multiple detections of foodborne pathogens

    • BMC Microbiology

    • Background

  14. Structural insights into acyl-ACP selective recognition by the Aeromonas hydrophila AHL synthase AhyI

    • BMC Microbiology

    • Background

      • Bacterial pathogens

  15. WeFaceNano: a user-friendly pipeline for complete ONT sequence assembly and detection of antibiotic resistance in multi-plasmid bacterial isolates

    • BMC Microbiology

    • Background

  16. Lactic acid bacteria that activate immune gene expression in Caenorhabditis elegans can antagonise Campylobacter jejuni infection in nematodes, chickens and mice

    • BMC Microbiology

    • Background

      • Campylobacter
      • Bacterial pathogens

  17. Human microbiota modulation via QseC sensor kinase mediated in the Escherichia coli O104:H4 outbreak strain infection in microbiome model

    • BMC Microbiology

    • Background

      • Bacterial pathogens

  18. Investigation of the invasion mechanism mediated by the outer membrane protein PagN of Salmonella Typhimurium

    • BMC Microbiology

    • Background
      Salmonella can invade host cells via a type three secretion system called T3SS-1 and its outer membrane proteins, PagN and Rck. However, the mechanism of PagN-dependent invasion pathway used by Salmonella enterica, subspecies enterica serovar Typhimurium remains unclear.

      • Salmonella
      • Bacterial pathogens

  19. Metallo-β-lactamase and AmpC genes in Escherichia coli, Klebsiella pneumoniae, and Pseudomonas aeruginosa isolates from abattoir and poultry origin in Nigeria

    • BMC Microbiology

    • Gram-negative bacteria (GNB) including Escherichia coli, Pseudomonas aeruginosa, and Klebsiella pneumoniae represent the most relevant reservoir of resistance genes such as metallo-β-lactamase (MBL) and AmpC gene...

      • Bacterial pathogens

  20. EHEC O111:H8 strain and norovirus GII.4 Sydney [P16] causing an outbreak in a daycare center, Brazil, 2019

    • BMC Microbiology

    • This study describes the investigation of an outbreak of diarrhea, hemorrhagic colitis (HC), and hemolytic uremic syndrome (HUS) at a daycare center in southeastern Brazil, involving fourteen children, six sta...

      • Norovirus
      • Viruses

  21. Characterisation of IncI1 plasmids associated with change of phage type in isolates of Salmonella enterica serovar Typhimurium

    • BMC Microbiology

    • Background

      • Salmonella
      • Bacterial pathogens

  22. Molecular and HPLC-based approaches for detection of aflatoxin B1 and ochratoxin A released from toxigenic Aspergillus species in processed meat

    • BMC Microbiology

    • Meat-products are considered an enriched media for mycotoxins. This study aimed to investigate the prevalence of toxigenic Aspergillus species in processed meat samples, HPLC-quantitative measurement of aflatoxin B1 and ochratoxin A residues, and molecular sequencing of aflR1 and pks genes. One hundred and twenty processed beef meat specimens (basterma, sausage, and minced meat; n = 40 for each) were collected from Ismailia Province, Egypt.

      • Natural toxins
      • Aflatoxins
      • Mycotoxins

  23. The small molecule ZY-214-4 may reduce the virulence of Staphylococcus aureus by inhibiting pigment production

    • BMC Microbiology

    • In recent years, clinical Staphylococcus aureus isolates have become highly resistant to antibiotics, which has raised concerns about the ability to control infections by these organisms. The aim of this study was to clarify the effect of a new small molecule, ZY-214-4 (C19H11BrNO4), on S. aureus pigment production.

      • Bacterial pathogens
      • Staphylococcus aureus

  24. HilE is required for synergistic activation of SPI-1 gene expression in Salmonella enterica serovar Typhimurium

    • BMC Microbiology

    • Salmonella enterica serovar Typhimurium is an intestinal pathogen capable of infecting a wide range of animals. It initiates infection by invading intestinal epithelial cells using a type III secretion system encoded within Salmonella pathogenicity island 1 (SPI-1). The SPI-1 genes are regulated by multiple interacting transcription factors. The master regulator is HilD. HilE represses SPI-1 gene expression by binding HilD and preventing it from activating its target promoters.

      • Salmonella
      • Bacterial pathogens

  25. Melatonin confers heavy metal-induced tolerance by alleviating oxidative stress and reducing the heavy metal accumulation in Exophiala pisciphila, a dark septate endophyte (DSE)

    • BMC Microbiology

    • Melatonin (MT), ubiquitous in almost all organisms, functions as a free radical scavenger. Despite several reports on its role as an antioxidant in animals, plants, and some microorganisms, extensive studies i...