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Fatal necrotizing fasciitis due to necrotic toxin-producing Escherichia coli strain

C Gallois1, C Hauw-Berlemont1, C Richaud2

  • 1Medical Intensive Care Unit, Paris, France.

New Microbes and New Infections
|December 23, 2015
PubMed

Insights

A fatal necrotizing soft tissue infection was caused by Escherichia coli, a bacterium carrying multiple virulence factors. This strain belonged to phylogenetic group C, highlighting potential pathogenic mechanisms.

Area of Science:

  • Microbiology
  • Infectious Diseases
  • Pathogenesis

Background:

  • Necrotizing soft tissue infections (NSTIs) are severe polymicrobial or monomicrobial bacterial infections.
  • Escherichia coli (E. coli) can cause a range of infections, from urinary tract infections to severe systemic diseases.

Observation:

  • A fatal case of necrotizing soft tissue infection was investigated.
  • The causative agent was identified as an Escherichia coli strain.

Findings:

  • The identified E. coli strain belonged to phylogenetic group C.
  • This strain harbored numerous virulence factors, including those associated with PAI IIJ96 and conserved virulence plasmidic regions.
  • These factors are implicated in bacterial pathogenicity and disease severity.

Implications:

  • This case highlights the potential for E. coli, particularly strains from phylogenetic group C with specific virulence factors, to cause severe necrotizing infections.
  • Understanding these virulence factors is crucial for developing targeted therapies and diagnostic strategies for severe E. coli infections.
  • Further research into the role of PAI IIJ96 and related regions in E. coli pathogenesis is warranted.
Keywords:
Escherichia coliimmunocompromised hostnecrotizing fasciitisvirulence factors

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