Salmonella species is a topic covered in the Johns Hopkins ABX Guide.

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MICROBIOLOGY

  • Aerobic, Gram-negative rod, 2-4 x 0.4-0.6µm.
  • Grows on standard media from stool source, but need fresh specimen.
    • Enrichment broth (tetrathionate or selenite) may help growth when organisms present in low numbers.
  • Salmonella enterica causes "enteric fever" due to serotypes typhi (typhoid fever) and paratyphi A, B and C.
    • S. paratyphi A is the most common cause of paratyphoid fever in the US.
  • Non-typhoidal Salmonella spp. are a major bacterial cause food-borne infection, primarily from poultry and eggs and more recently from diverse sources including food borne epidemics and pet turtles.

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Last updated: January 29, 2017