After the revision of World Health Organization (WHO) guidelines yesterday, international medical humanitarian organization Doctors Without Borders/Médecins Sans Frontières (MSF) calls for a drug proven to reduce deaths in children suffering from severe malaria to be immediately rolled out in African countries. In its new report Making the Switch, MSF calls on African governments to follow new World Health Organization (WHO) guidelines, and switch from the far less effective quinine to artesunate treatment, which could avert nearly 200,000 deaths each year. MSF also calls on WHO and donors to support governments so this urgent treatment change can happen quickly.