Campylobacter jejuni is a topic covered in the Johns Hopkins ABX Guide.

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MICROBIOLOGY

  • Spiral-shaped bacteria well adapted to birds (carriage is asymptomatic).
    • Raw chicken in U.S. frequently contaminated with this organism.
  • Major cause of food-borne diarrhea (either #1 or #2 cause in U.S. trading places with Salmonella).
    • Cases occur summer > winter.
  • C. jejuni causes 99% of Campylobacter infections.
  • Culture usually performed using selective "CAMP" agar, with temperature set at normal avian body temperature of 42°C, rather than at 37°C.
    • Microaerophilic conditions facilitate growth.
    • Oxidase positive.
    • Stool Gram stain, curved rods suggestive of diagnosis (sensitivity 50-75%)
    • Typically only scanty growth seen on aerobic plates.

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Last updated: April 4, 2016