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Pathogens
Fusobacterium species

Fusobacterium species

Susceptibilities

General susceptibility
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General Information

  • Ampicillin/Sulbactam
  • Metronidazole (+/- ceftriaxone)
  • Penicillin (if susceptible)
  • Piperacillin/tazobactam
  • Amoxicillin/Clavulanate

Anaerobic, gram-negative bacilli

Normal oral/gastrointestinal flora

  • Pharyngitis
  • Oral/dental infections
  • Empyema
  • Intra-abdominal abscess
  • Bacteremia
  • Head and neck infection including Lemierre's syndrome (septic jugular thrombophlebitis) associated with F. necrophorum
  • Multiple species but usually two account for most human disease: F. nucleatum and F. necrophorum
  • Bacteremia with F. necrophorum should prompt thorough investigation for septic thrombophlebitis (Lemierre's syndrome)