Q5. Kala-azar, one of the most fatal diseases is caused by:
Visceral leishmaniasis (VL), also known as kala-azar, black fever, and Dumdum fever, is the most severe form of leishmaniasis and, without proper diagnosis and treatment, is associated with high fatality.
It is caused by protozoan parasites of the Leishmania genus. migrates to the internal organs such as the liver, spleen (hence “visceral”), and bone marrow
Its signs and symptoms include fever, weight loss, fatigue, anemia, and substantial swelling of the liver and spleen.
Kala-azar is endemic to the Indian subcontinent in 119 districts in four countries (Bangladesh, Bhutan, India and Nepal)
This disease is the second-largest parasitic killer in the world.