Francisella tularensis is a topic covered in the Johns Hopkins Antibiotic (ABX) Guide.

To view the entire topic, please or purchase a subscription.

Johns Hopkins Guides provide diagnosis, management, and treatment guidance for infectious diseases, diabetes, and psychiatric conditions. Explore these free sample topics:

Johns Hopkins Guides

~~ The first section of this topic is shown below ~~

MICROBIOLOGY

  • Small, pleomorphic, intracellular and extracellular fastidious, aerobic Gram negative coccobacillus.
  • Culture: poor or no growth on standard media.
    • Media most often employed: Thayer-Martin, BCYE or chocolate agar with addition of cysteine and/or cysteine (thioglycolate). MacConkey does not yield growth.
    • Slow grower, may require CO2 supplementation.
  • Considered an important laboratory hazard to laboratory personnel requiring specialized safety procedures. Notify lab if considering diagnosis when submitting specimens; higher level labs may be required.
  • Four recognized subspecies that vary in location and virulence:
    • F. tularensis: distinguished by PCR.
      • Biovar tularensis (Type A)
      • Biovar holarctica (B)
      • Biovar mediasiatica and subspecies novicida

~~ To view the remaining sections of this topic, please
or purchase a subscription ~~

Last updated: February 1, 2016