Researchers at the IIT Hyderabad have been able to achieve sustained release of the drug (Amphotericin B) for up to 10 days, which can be used for treating kala-azar.
It is a disease caused by parasites of the Leishmania type.
It is spread by the bite of infected female sandflies.
It attacks the immune system, and is almost always fatal if not treated.
It is the second-largest parasitic killer in the world (after malaria).
Kala Azar also known as black fever, and Dumdum fever is classified as a neglected tropical disease.
In India, this disease is endemic to West Bengal, Bihar, Jharkhand and eastern Uttar Pradesh.