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Plague  Lesson 4
 Laboratory Issues - Clinicians

Laboratory Results for Case Classification - Suspect

  • Definition
    • Clinical symptoms and exposure history are compatible with plague infection.
    • Smear or isolate from affected tissues like the lymph node, blood, or tracheal/lung aspirate that are small, gram-negative and/or bipolar-staining, plump rods in singles, short chains and that are catalase positive, and oxidase and urease negative.
  • Lab Tests for Suspect
    • Gram stain
    • Differential stain
    • Culture
    • Catalase
    • Oxidase
    • Urease
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Femoral Bubo
Femoral Bubo

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Page last reviewed February 12, 2007
Page last modified September 7, 2004

  • Content source: CDC Emergency Risk Communication Branch (ERCB), Division of Emergency Operations (DEO), National Center for Emerging and Zoonotic Infectious Diseases (NCEZID)
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