Genome analysis reveals insights into high-resistance and virulence of Salmonella Enteritidis involved in foodborne outbreaks

Int J Food Microbiol. 2019 Oct 2:306:108269. doi: 10.1016/j.ijfoodmicro.2019.108269. Epub 2019 Jul 17.

Abstract

Salmonella enterica serovar Enteritidis strain SE86 has been associated with several foodborne diseases occurring in Southern Brazil, becoming and important causative agent of human salmonellosis. In this work, the complete genome of the bacterium Salmonella Enteritidis SE86 was sequenced using the Illumina MiSeq platform. An in silico analysis of the SE86 genome was performed in order to compare it with different Salmonella strains as well as to investigate the presence of stress-resistance and virulence genes. This strain showed a variety of genes that can be involved in antimicrobial and biocide resistance, acid and thermal resistance as well as virulence and adhesion. These genetic features could explain its increased resistance and the prevalence of this strain in foodborne outbreaks in Southern Brazil.

Keywords: Foodborne outbreaks; Genome; Salmonella Enteritidis.

MeSH terms

  • Anti-Bacterial Agents / pharmacology*
  • Brazil / epidemiology
  • Disease Outbreaks
  • Genome, Bacterial / genetics
  • Humans
  • Microbial Sensitivity Tests
  • Salmonella Food Poisoning / epidemiology*
  • Salmonella Food Poisoning / microbiology
  • Salmonella enteritidis* / drug effects
  • Salmonella enteritidis* / genetics
  • Salmonella enteritidis* / pathogenicity
  • Virulence / genetics
  • Virulence Factors / genetics

Substances

  • Anti-Bacterial Agents
  • Virulence Factors