An animated video explainer on the neglected tropical disease kala azar, and on kala azar-HIV co-infection. The video also explains the work MSF does on the disease in India. MSF has been focusing on the treatment of kala azar-HIV co-infection in partnership with the Rajendra Memorial Research Institute of Medical Sciences (RMRIMS) in Patna, Bihar since 2016. Until October 2018, MSF has treated over 700 co-infected patients.