The model for kala azar eradication is a cross-sectoral public-private partnership, writes Kavita Khanna in the second of a two-part series Globally, kala azar is the second largest parasitic killer after malaria. In India, Bihar is the epicentre of kala azar, home to, as per the state Kala Azar Task Force, over 1,00,000 patients. Kala azar is eminently preventable and curable. The parasite that transmits the disease is the sandfly. An extensive and effective vector control programme can go a long way in preventing transmission of the disease.