ArticlePloS one2017
Characterization of Salmonella enterica isolates causing bacteremia in Lima, Peru, using multiple typing methods.
Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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12 citing papers in PubMed, 21 citations in OpenAlex.
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- Comparative genomic analysis provides new insights into non-typhoidal Salmonella population structure in Peru.Scientific reports · 2024Article
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- WGS-Based Lineage and Antimicrobial Resistance Pattern ofAntibiotics (Basel, Switzerland) · 2022Article
- In Silico Detection of Antimicrobial Resistance Integrons inAntibiotics (Basel, Switzerland) · 2021Article
- High similarity and high frequency of virulence genes among Salmonella Dublin strains isolated over a 33-year period in Brazil.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2020Article
- Whole-Genome Sequencing of Salmonella enterica Serovar Infantis and Kentucky Isolates Obtained from Layer Poultry Farms in Ecuador.Microbiology resource announcements · 2020Article
- Effectiveness of six molecular typing methods as epidemiological tools for the study ofVeterinary world · 2019Article
- Characterization of ESBL-ProducingThe American journal of tropical medicine and hygiene · 2019Article
- Analysis ofTropical life sciences research · 2019Article
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- Random amplified polymorphic DNA-based molecular heterogeneity analysis ofVeterinary world · 2019Article
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Authors and funding
15 authors at 5 institutions in 5 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In this study, different molecular typing tools were applied to characterize 95 Salmonella enterica blood isolates collected between 2008 and 2013 from patients at nine public hospitals in Lima, Peru. Combined results of multiplex PCR serotyping, two- and seven-loci multilocus sequence typing (MLST) schemes, serotyping, IS200 amplification and RAPD fingerprints, showed that these infections were caused by eight different serovars: Enteritidis, Typhimurium, Typhi, Choleraesuis, Dublin, Paratyphi A, Paratyphi B and Infantis. Among these, Enteritidis, Typhimurium and Typhi were the most prevalent, representing 45, 36 and 11% of the isolates, respectively. Most isolates (74%) were not resistant to ten primarily used antimicrobial drugs; however, 37% of the strains showed intermediate susceptibility to ciprofloxacin (ISC). Antimicrobial resistance integrons were carried by one Dublin (dfra1 and aadA1) and two Infantis (aadA1) isolates. The two Infantis isolates were multidrug resistant and harbored a large megaplasmid. Amplification of spvC and spvRA regions showed that all Enteritidis (n = 42), Typhimurium (n = 34), Choleraesuis (n = 3) and Dublin (n = 1) isolates carried the Salmonella virulence plasmid (pSV). We conclude that the classic serotyping method can be substituted by the multiplex PCR and, when necessary, sequencing of only one or two loci of the MLST scheme is a valuable tool to confirm the results. The effectiveness and feasibility of different typing tools is discussed.
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