Kala azar cannot occur at an altitude of;: (A) 400 meters, (B) 500 meters, (C) 600 meters, (D) 200 meters
Answer is C. Kala-azar or Visceral leishmaniasis (VL) is a disease of low altitude (approximately 500 meters mean sea level). In India, however cases have been repoed from sub-Himalayan region (350-960 meters MSL) of Kumaon region of Uttaranchal.