ArticleFrontiers in microbiology2015
Ecological prevalence, genetic diversity, and epidemiological aspects of Salmonella isolated from tomato agricultural regions of the Virginia Eastern Shore.
Article in Frontiers in microbiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.
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Who cites it
41 citing papers in PubMed.
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- Water sampling using modified Moore swab (MMS): the effects of sampling replicates and different media on the frequency and diversity ofApplied and environmental microbiology · 2025Article
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- Recurring bacterial strains, subclusters, and the importance of practising lessons learned.Epidemiology and infection · 2024Article
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- A dual RPA-LFD assay for the simultaneous detection ofFrontiers in bioengineering and biotechnology · 2024Article
- Effects of Fumigation on the Reduction ofFoodborne pathogens and disease · 2023Article
- Tomato Plant Microbiota under Conventional and Organic Fertilization Regimes in a Soilless Culture System.Microorganisms · 2023Article
- Salmonella Prevalence Is Strongly Associated with Spatial Factors while Listeria monocytogenes Prevalence Is Strongly Associated with Temporal Factors on Virginia Produce Farms.Applied and environmental microbiology · 2023Article
- Microbial Genetics and Clonal Dissemination of Salmonella enterica Serotype Javiana Isolated from Human Populations in Arkansas, USAPathogens (Basel, Switzerland) · 2022Article
- Closed Genome Sequences ofMicrobiology resource announcements · 2022Article
- Anaerobic soil disinfestation, amendment-type, and irrigation regimen influence Salmonella survival and die-off in agricultural soils.Journal of applied microbiology · 2022Article
- Revisiting the Biological Behavior ofFrontiers in microbiology · 2022Article
- Salmonella Genomics in Public Health and Food Safety.EcoSal Plus · 2021Article
Corrections and comments
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Authors and funding
12 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Virginia is the third largest producer of fresh-market tomatoes in the United States. Tomatoes grown along the eastern shore of Virginia are implicated almost yearly in Salmonella illnesses. Traceback implicates contamination occurring in the pre-harvest environment. To get a better understanding of the ecological niches of Salmonella in the tomato agricultural environment, a 2-year study was undertaken at a regional agricultural research farm in Virginia. Environmental samples, including tomato (fruit, blossoms, and leaves), irrigation water, surface water and sediment, were collected over the growing season. These samples were analyzed for the presence of Salmonella using modified FDA-BAM methods. Molecular assays were used to screen the samples. Over 1500 samples were tested. Seventy-five samples tested positive for Salmonella yielding over 230 isolates. The most commonly isolated serovars were S. Newport and S. Javiana with pulsed-field gel electrophoresis yielding 39 different patterns. Genetic diversity was further underscored among many other serotypes, which showed multiple PFGE subtypes. Whole genome sequencing (WGS) of several S. Newport isolates collected in 2010 compared to clinical isolates associated with tomato consumption showed very few single nucleotide differences between environmental isolates and clinical isolates suggesting a source link to Salmonella contaminated tomatoes. Nearly all isolates collected during two growing seasons of surveillance were obtained from surface water and sediment sources pointing to these sites as long-term reservoirs for persistent and endemic contamination of this environment.
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