ArticleEpidemiology and infection2006
Molecular epidemiology and diversity of Salmonella serovar Typhimurium in pigs using phenotypic and genotypic approaches.
Article in Epidemiology and infection, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.
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Who cites it
15 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Worldwide Epidemiology ofApplied and environmental microbiology · 2019Pooled it
- Application of a Quantitative Real-Time PCR Assay for Early Detection ofTransboundary and emerging diseases · 2025Article
- Accurate identification and discrimination ofFrontiers in veterinary science · 2023Article
- A new multiplex PCR for the accurate identification and differentiation ofFrontiers in microbiology · 2022Article
- Molecular Epidemiology of Infectious Zoonotic and Livestock Diseases.Microbiology spectrum · 2020Review
- Microevolution of antimicrobial resistance and biofilm formation of Salmonella Typhimurium during persistence on pig farms.Scientific reports · 2019Article
- Phenotypic and Genotypic Eligible Methods forFrontiers in microbiology · 2017Review
- In-feed use of heavy metal micronutrients in U.S. swine production systems and its role in persistence of multidrug-resistant salmonellae.Applied and environmental microbiology · 2014Article
- Antibiotic Resistance in Salmonella enterica Serovar Typhimurium Associates with CRISPR Sequence Type.Antimicrobial agents and chemotherapy · 2013Article
- Salmonella enterica in swine production: assessing the association between amplified fragment length polymorphism and epidemiological units of concern.Applied and environmental microbiology · 2011Article
- Salmonella enterica in commercial swine feed and subsequent isolation of phenotypically and genotypically related strains from fecal samples.Applied and environmental microbiology · 2010Article
- Characterization of Salmonella Typhimurium isolates associated with septicemia in swine.Canadian journal of veterinary research = Revue canadienne de recherche veterinaire · 2010Article
- Interaction between host cells and septicemic Salmonella enterica serovar typhimurium isolates from pigs.Journal of clinical microbiology · 2009Article
- Longitudinal study of Salmonella dispersion and the role of environmental contamination in commercial swine production systems.Applied and environmental microbiology · 2009Article
- Molecular epidemiology and antimicrobial resistance of Salmonella typhimurium DTI04 on Ontario swine farms.Canadian journal of veterinary research = Revue canadienne de recherche veterinaire · 2008Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
For epidemiological investigations of the most common and non-host-adapted Salmonella serotypes, such as Typhimurium, highly discriminatory approaches are essential. In the present study, we evaluated three genotyping methods; amplified fragment length polymorphism (AFLP), pulsed-field gel electrophoresis (PFGE) and repetitive palindromic extragenic-PCR (Rep-PCR) using 40 isolates. AFLP showed the highest discriminatory index (0.939), resolution and throughput. To determine clonality of Salmonella Typhimurium isolates and epidemiological relatedness in different commercial pig production units, we employed AFLP in combination with antimicrobial resistance pattern and phage typing. Salmonella serovar Typhimurium isolates (n=196) obtained from a longitudinal study of 18 pig farms over a 3-year period were studied. Using this approach, 16 distinct clonal types were identified. We found two common multidrug- resistant patterns including AmCmStSuTe and AmKmStSuTe. Two commonly multidrug- resistant phage types that are of known public health importance, DT104 and DT193, were also common. AFLP differentiated distinct clones within DT104, a phage type previously reported to be clonal. Fourteen of the clonal types were unique to one of the two production systems, showing diversity between independent commercial pig production systems located in the same geographical area. Clonal types obtained from nursery farms and corresponding finishing units were, however, similar.
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