MSF operational research takes an in-depth look at programmes and operations, evaluates what is working well, and shows what needs to be improved. In this clip, 4 researchers explain their studies and findings on TB-screening and treatment in Malawi prison, delivering care to asylum seekers in Sweden, using physiotherapy in care for victims of sexual violence in the MENA region, and distributing household disinfection kits in Liberia during the Ebola outbreak.