Anaerobiospirillum succiniciproducens

• Spiral Gram-negative bacillus
• GI flora of cats and dogs
• Rare cases of bacteremia and diarrhea in humans, usually immunocompromised
• Likely susceptible to beta lactams, can be resistant to metronidazole
  • Beta lactam/beta lactamase combination is most reliable
  • Ceftriaxone likely also reliable

Further Reading

• Bloodstream infection with Anaerobiospirillum succiniciproducens: a potentially lethal infection. South Med J. 2011 Mar;104(3):205-14. doi: 10.1097/SMJ.0b013e318200c8d7. PMID: 21297548; PMCID: PMC8053312.