Social & Preventive Medicine Which of the following is the causative agent of STD disease donovanosis? A Hemophilus ducrevi B Klebsiella granulomatis C Leishmania donovani D Treponema pallidum 💡 Explanation Which of the following is the causative agent of STD disease donovanosis? ✓ Correct Answer: B. Klebsiella granulomatis