KROK 1 2007 – Question 20 · KROK (Medicine) · Microbiology, Virology, and Immunology

A man was admitted to the hospital on the 5th day of disease that manifested itself by jaundice, muscle aching, chill, nose bleedings. In course of laboratory diagnostics a bacteriologist performed darkfield microscopy of the patient’s blood drop. Name a causative agent of this disease:

  1. A. Borrelia duttonii
  2. B. Leptospira interrogans
  3. C. Rickettsia mooseri
  4. D. Bartonella bacilliformis
  5. E. Calymmatobacterium granulomatis
Hint

Darkfield microscopy of blood reveals thin, tightly coiled motile spirochetes; combine this with the first-week picture of jaundice, severe muscle pain, chills and nosebleeds to decide which spirochetal infection fits.

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