Lemierre's Syndrome Due to the Zoonotic Anaerobe Bacteroides pyogenes: Case Report and Literature Review

Kathryn P Goggin1, Nicholas Beckmann2, Kristen Bettin3

  • 1Department of Pediatrics, Division of Infectious Diseases, Le Bonheur Children's Hospital, University of Tennessee Health Science Center, Memphis, Tennessee, USA.

Insights

Fusobacterium necrophorum causes mastoiditis, but other anaerobes like Bacteroides pyogenes can cause severe infections. 16S sequencing identified this novel pathogen in a patient with severe sequelae.

Area of Science:

  • Microbiology
  • Infectious Diseases
  • Genomics

Background:

  • Fusobacterium necrophorum is a known cause of acute mastoiditis in children.
  • Anaerobic bacterial infections can lead to severe complications such as sepsis and thrombophlebitis.

Observation:

  • A patient presented with severe sequelae, including intracranial and extracranial suppurative thrombophlebitis and sepsis.
  • Initial exposure history was unremarkable.

Findings:

  • 16S next-generation sequencing of a surgical specimen identified a novel pathogen, Bacteroides pyogenes.
  • This finding highlights the importance of advanced sequencing in identifying causative agents.

Implications:

  • Bacteroides pyogenes should be considered in the differential diagnosis of severe anaerobic infections.
  • Advances in genomic sequencing are crucial for pathogen discovery and understanding complex infections.

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