Pasteurella species is a topic covered in the Johns Hopkins Antibiotic (ABX) Guide.

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MICROBIOLOGY

  • Aerobic to facultatively anaerobic, non-motile small Gram-negative bacillus or may appear as coccobacillus.
    • Grows best on 5% sheep blood agar at 37°C.
    • Usually catalse- and oxidase-positive.
  • Pasturella multocida the most common species causing human infection.
    • Others include P. multocida subspecies septica, and P. multocida subsp gallicida, P. canis., P. dagmatis and P. stomatis.
    • Typing of usually done by serology examining capsular antigens (A-F) although molecular methods also capable.
  • Common inhabitant of feline > canine oral flora. Common cause of illness in rabbits.
  • Often part of polymicrobial aerobic and anaerobic flora of domestic pet bite wound infections.
  • Animal bites or scratches may result in cellulitis +/- bacteremia.
  • Pasteurella usually susceptible to penicillins, tetracyclines or chloramphenicol.

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Last updated: November 2, 2015