Causative agent for 'Oriental sore' is:-: (A) Leishmania donovoni, (B) Leishmania tropica, (C) Leishmania braziliensis, (D) Onchocerca volvulus
Answer is B. Leishmania tropica causes Cutaneous leishmaniasis and Oriental Sore. Leishmania donovoni causes Visceral leishmaniasis. (Kala azar) Leishmania brazeliensis causes Muco-cutaneous leishmaniasis. Onchocerca volvulus cause Onchocerciasis. (River blindness)