KROK 1 2017 – Question 58 · KROK (Medicine) · Microbiology, Virology, and Immunology

Old burial ground for animal refuse, which has not been in use for the last 50 years, is planned to be given for housing development. However, the soil analysis detected viable spores of a causative agent of an extremely dangerous disease. What microorganism is the most likely to remain in the soil for such a long period of time?

  1. A. Bacillus anthracis
  2. B. Mycobacterium bovis
  3. C. Francisella tularensis
  4. D. Brucella abortus
  5. E. Yersinia pestis
Hint

Ask which of these animal-borne pathogens is a true spore-former, since dormant spores are what allow survival in soil for decades.

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