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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 26 - 50 of 185

  1. Leaf blight of rice-paper plant, Tetrapanax papyrifer, caused by Neofusicoccum parvum: a potential source of stem rot diseases of mango and grape

    • Journal of General Plant Pathology
    • Rice-paper plant, Tetrapanax papyrifer is a woody plant native to Taiwan and widely distributed in western Japan. Due to its low commercial value, little is known about its interactions with microorganisms. Here, we isolated Neofusicoccum parvum, a known causal agent of grape stem rot and mango stem-end rot, from leaf blight on T. papyrifer. Compared to mango isolate, N.

      • Parasites
      • Cryptosporidium parvum
  2. Persistence and survival of Cryptosporidium parvum oocysts on lamb's lettuce leaves during plant growth conditions and industrial washing conditions in minimally-processed salads

    • International Journal of Food Microbiology
    • Cryptosporidium is the causative agent of cryptosporidiosis, which results, among others, in profuse diarrhoea. Transmission to humans occurs via the faecal-oral route directly by contact with infected hosts or indirectly by waterborne or foodborne routes. For the latter, parasite transmission is closely linked to the oocyst's ability to persist and survive in food matrices.

      • Parasites
      • Cryptosporidium parvum
  3. Health risks of Cryptosporidium and Giardia in the application of surface water and septic tank effluent in Chinese agriculture: Impact on cancer patients identified by quantitative microbial risk assessment

    • Food Microbiology
    • The protozoa Cryptosporidium and Giardia are major causes of diarrhea and are commonly found on vegetables in China. They pose a health risk, particularly to immunocompromised individuals, including cancer patients.

      • Parasites
      • Cryptosporidium parvum
      • Giardia lamblia
  4. Disease caused by Neofusicoccum parvum in pruning wounds of grapevine shoots and its control by Trichoderma spp. and Xenorhabdus szentirmaii

    • Fungal Biology
    • Neofusicoccum parvum, is a fungal pathogen and one of the etiological agents of dieback disease in grapevines. The fungus causes deterioration of vines due to vascular colonization and/or production of toxins. We report herein the inhibitory effects of Trichoderma spp. isolates and the antifungal effects of cell-free supernatants (CFS) from Xenorhabdus and Photorhabdus bacteria against N.

      • Parasites
      • Cryptosporidium parvum
  5. Distribution of Cryptosporidium parvum subgenotypes in pre-weaned calves in Germany

    • Veterinary Parasitology: Regional Studies and Reports
    • Cryptosporidium parvum is a main cause of severe diarrhea in young calves leading to economic loss and animal suffering. Little is known about the epidemiology of the genetic subtypes that may differ in their infectiousness and zoonotic potential. The present study analyzes the distribution of Glycoprotein 60 (GP60) variants in C.

      • Parasites
      • Cryptosporidium parvum
  6. Novel genotypes of Cryptosporidium and Enterocytozoon bieneusi detected in plateau zokors (Myospalax baileyi) from the Tibetan Plateau

    • International Journal for Parasitology: Parasites and Wildlife
    • The plateau zokor (Myospalax baileyi) is a small subterranean rodent endemic to China that lives alone in sealed underground burrows at altitudes ranging from 2000 to 4200 m above sea level on the Tibetan Plateau. Due to the unique environmental factors in the Tibetan Plateau, intestinal parasites in the local population may be more likely to develop host-adapted genotypes.

      • Parasites
      • Cryptosporidium parvum
  7. Anti-Cryptosporidium efficacy of Citrus sinensis peel extract: Histopathological and ultrastructural experimental study

    • Experimental Parasitology
    • Background Cryptosporidiosis is a crucial zoonotic global health concern which can be treated by alternative medicinal plants extracts. Aim of the study The study was carried out to assess the therapeutic efficacy of Citrus sinensis peel ethanolic extract on Cryptosporidium-infected mice. Methods Two doses of Citrus sinensis extract; high dose (30 mg/kg) and low dose (15 mg/kg) were investigated compared to the commo

      • Parasites
      • Cryptosporidium parvum
  8. Abundance of selected bacterial groups in healthy calves and calves developing diarrhea during the first week of life: Are there differences before the manifestation of clinical symptoms?

    • Frontiers in Microbiology
    • Background Diarrhea is still the most common and economically most significant disease of newborn calves. Objective Analysis of the development of selected bacterial groups in the feces of neonatal calves and its significance regarding diarrhea. Animals A total of 150 newborn Simmental calves reared in 13 Bavarian farms were included in the study. Methods Fecal samples of calves taken at 0/6/12/24/48/72/168 hours

      • Parasites
      • Cryptosporidium parvum
  9. Occurrence of Giardia and Cryptosporidium in effluents of urban wastewater treatment plants: A global systematic review and meta-analysis

    • Journal of Cleaner Production
    • Giardia and Cryptosporidium the important causative agents of intestinal parasitic diseases (IPD) are ubiquitously distributed in the environment, especially in wastewater and reclaimed water. Due to the water shortage crisis and extensive utilization of reclaimed water, the presence of these parasitic protozoa in wastewater is a concern from the public and environmental health point of view.

      • Parasites
      • Cryptosporidium parvum
      • Giardia lamblia
  10. Longitudinal surveillance of Cryptosporidium spp. in broiler chickens in Xinjiang, northwest China: genetic diversity of Cryptosporidium meleagridis subtypes

    • Parasitology Research
    • Cryptosporidium spp. are common enteric parasites in humans and animals. Herein, 175 faecal specimens were collected from a broiler farm in Xinjiang, China, including seven repeated samplings at 10-day intervals of broilers aged 10 to 70 days. Cryptosporidium was detected and identified by PCR–RFLP analysis.

      • Parasites
      • Cryptosporidium parvum
  11. Single domain antibodies against enteric pathogen virulence factors are active as curli fiber fusions on probiotic E. coli Nissle 1917

    • PLOS Pathogens
    • by Ilia Gelfat, Yousuf Aqeel, Jacqueline M. Tremblay, Justyna J. Jaskiewicz, Anishma Shrestha, James N. Lee, Shenglan Hu, Xi Qian, Loranne Magoun, Abhineet Sheoran, Daniela Bedenice, Colter Giem, Avinash Manjula-Basavanna, Amanda R. Pulsifer, Hann X. Tu, Xiaoli Li, Marilyn L. Minus, Marcia S. Osburne, Saul Tzipori, Charles B. Shoemaker, John M. Leong, Neel S.

      • Bacterial pathogens
      • Shigella
      • Parasites
      • Cryptosporidium parvum
  12. Seasonal and Spatial Variations in the Presence of Giardia and Cryptosporidium in Rural Drinking Water Supply Systems in Different Municipalities of Antioquia, Colombia

    • Water, Air, & Soil Pollution
    • This study evaluated the seasonal and spatial variations in the presence of Giardia and Cryptosporidium in rural drinking water supply systems of different municipalities of Antioquia. The municipalities evaluated were Envigado, Caldas, Sabaneta, La Estrella, Itagüi, Bello, Barbosa, Copacabana, and Girardota, located in the department of Antioquia, Colombia.

      • Parasites
      • Cryptosporidium parvum
      • Giardia lamblia
  13. Cryptosporidium infection in young dogs from Germany

    • Parasitology Research
    • Cryptosporidium is an enteric protozoan parasite which is able to cause severe gastrointestinal disease and is distributed all over the world. Since information about the prevalence of cryptosporidiosis in German dogs is rare, the aim of this study was to examine the occurrence of Cryptosporidium spp. in dogs and the potential zoonotic risk emanating from these infected animals. In total, 349 fecal samples of 171 dogs were collected during the dogs’ first year of life.

      • Parasites
      • Cryptosporidium parvum
  14. First report of rodent-adapted Cryptosporidium wrairi in an immunocompetent child, Spain

    • Parasitology Research
    • Cryptosporidiosis is a leading cause of childhood diarrhoea. Two species, Cryptosporidium hominis and Cryptosporidium parvum, are responsible for most confirmed cases globally. Close contact with pet animals can be an unnoticed source of children infections.

      • Parasites
      • Cryptosporidium parvum
  15. Development and evaluation of a real-time PCR for genotyping of Cryptosporidium spp. from water monitoring slides.

    • Experimental Parasitology
    • Cryptosporidium is an important cause of gastroenteritis globally and the main agent of waterborne outbreaks caused by protozoan parasites. Water monitoring for Cryptosporidium oocysts is by detection and enumeration using stained slide microscopy. Species identification (known as genotyping) may be undertaken post hoc and remains a specialist test, only undertaken in some laboratories.

      • Parasites
      • Cryptosporidium parvum
  16. An outbreak of cryptosporidiosis associated with drinking water in north-eastern Italy, August 2019: microbiological and environmental investigations

    • Eurosurveillance
    • is a leading global cause of waterborne disease, with many reported outbreaks related to main water supplies. In August 2019, an outbreak of cryptosporidiosis involving 80 cases occurred among 114 vacationers in a small municipality located in the Tuscan-Emilian Apennines, north-eastern Italy. After excluding a potential food-borne outbreak, the epidemiological investigation focussed on the hypothesis of a waterborne outbreak.

      • Parasites
      • Cryptosporidium parvum
  17. Transmission of Cryptosporidium by Fresh Vegetables

    • Consumption of fresh fruits and vegetables is increasing thanks to the awareness to the benefits to human health. Vegetables may become contaminated by enteric pathogens (protozoan parasites, bacteria and viruses) by irrigation with contaminated water, fertilization with fresh animal manure or by infected food handlers. Cryptosporidium spp. are fecal-oral protozoan parasites, known to be highly persistent in the environment, which facilitate the transmission of the infectious oocysts.

      • Parasites
      • Cryptosporidium parvum
  18. Occidiofungin: Actin Binding as a Novel Mechanism of Action in an Antifungal Agent

    • Antibiotics
    • The identification and development of natural products into novel antimicrobial agents is crucial to combat the rise of multidrug-resistant microorganisms. Clinical fungal isolates have been identified, which have shown resistance to all current clinical antifungals, highlighting a significant need to develop a novel antifungal agent. One of the natural products produced by the bacterium Burkholderia contaminans MS14 is the glycolipopeptide occidiofungin.

      • Parasites
      • Cryptosporidium parvum
  19. Divergent Cryptosporidium species and host-adapted Cryptosporidium canis subtypes in farmed minks, raccoon dogs and foxes in Shandong, China

    • Frontiers in Cellular and Infection Microbiology
    • Cryptosporidium spp. are common parasitic pathogens causing diarrhea in humans and various animals. Fur animals are widely farmed in Shandong Province, China, but the prevalence and genetic identity of Cryptosporidium spp. in them are unclear. In this study, 1,211 fecal samples were collected from 602 minks, 310 raccoon dogs and 299 foxes on two farms in Shandong and analyzed for Cryptosporidium spp. by nested PCR and sequence analyses of the small subunit rRNA gene.

      • Parasites
      • Cryptosporidium parvum
  20. Effects of selected condensed tannins on Cryptosporidium parvum growth and proliferation in HCT-8 cell cultures

    • Experimental Parasitology
    • Infections with Cryptosporidium spp. Constitute a substantial public health burden and are responsible for widespread production losses in cattle herds. Reducing disease and shedding of Cryptosporidium oocysts is an important One Health goal. There are very few therapeutic options available to treat cryptosporidiosis.

      • Parasites
      • Cryptosporidium parvum
  21. Molecular identification of Cryptosporidium species in Canadian post-weaned calves and adult dairy cattle

    • Veterinary Parasitology: Regional Studies and Reports
    • Cryptosporidium is a zoonotic protozoan parasite that is distributed globally and impacts both human and animal health. There are over 40 species of Cryptosporidium described to date, of which four (C. parvumC. bovisC. ryanae and C. andersoni) are routinely reported in cattle.

      • Parasites
      • Cryptosporidium parvum
  22. Risk factors for Cryptosporidium infection in small ruminants in northern Greece

    • Veterinary Parasitology
    • The knowledge of risk factors for Cryptosporidium spp. infection in small ruminants is based on limited data. Therefore, the current research aimed to describe the prevalence and risk factors associated with the occurrence of Cryptosporidium infection in sheep and goat herds in northern Greece.

      • Parasites
      • Cryptosporidium parvum
  23. Survey of the occurrence of Giardia duodenalis cysts and Cryptosporidium spp. oocysts in green leafy vegetables marketed in the city of Valencia (Spain)

    • International Journal of Food Microbiology
    • The role of vegetables usually consumed without prior culinary treatment is known to contribute to the prevalence of foodborne diseases. Cysts and oocysts can contaminate food, which can then be the source of infection in humans. The aim of the study was to assess the occurrence of Giardia duodenalis and Cryptosporidium spp.

      • Parasites
      • Cryptosporidium parvum
      • Giardia lamblia
  24. Molecular detection and genetic characterization of Cryptosporidium in kindergarten children in Southern Xinjiang, China

    • Infection, Genetics and Evolution
    • Cryptosporidium is a common cause of diarrhea in children globally. However, there is limited information on the prevalence and genetic characteristics of Cryptosporidium in children in Xinjiang, China.

      • Parasites
      • Cryptosporidium parvum
  25. Comparative Transcriptomics and Gene Knockout Reveal Virulence Factors of Neofusicoccum parvum in Walnut

    • Frontiers in Microbiology
    • Neofusicoccum parvum can cause stem and branch blight of walnut (Juglans spp.), resulting in great economic losses and ecological damage. A total of two strains of N. parvum were subjected to RNA-sequencing after being fed on different substrates, sterile water (K1/K2), and walnut (T1/T2), and the function of ABC1 was verified by gene knockout. There were 1,834, 338, and 878 differentially expressed genes (DEGs) between the K1 vs. K2, T1 vs. K1, and T2 vs. K2 comparison groups, respectively.

      • Parasites
      • Cryptosporidium parvum