Question:medium
Donovanosis is caused by which of the following organisms?
Donovanosis is caused by which of the following organisms?
Show Hint
The genus that gives painless beefy-red ulcers and Donovan bodies is the clue, do not confuse it with the Leishmania of the same eponym.
Updated On: Jun 23, 2026
- Haemophilus ducreyi
- Leishmania donovani
- Klebsiella granulomatis
- Treponema pallidum
Show Solution
The Correct Option is C
Solution and Explanation
Eponym-trap approach. Donovanosis is the same as granuloma inguinale, a chronic STD marked by painless, slowly spreading, beefy-red genital ulcers that bleed on touch and show Donovan bodies on tissue crush smears. The Donovan body eponym and the Donovani species both honour Charles Donovan, which is the trap baked into this question. Sort the four ulcer-and-eponym options: Klebsiella granulomatis is the true cause of donovanosis; Leishmania donovani is the protozoan of visceral leishmaniasis (kala-azar), not a genital ulcer at all; Haemophilus ducreyi gives painful, ragged chancroid; and Treponema pallidum gives the single painless indurated chancre of primary syphilis. Match the painless beefy ulcer plus Donovan bodies to the Klebsiella and the rest fall away. Answer: Klebsiella granulomatis.
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