´óÏó´«Ã½

A debate has been raging over the last month about the benefits of mass deworming projects. Hugely popular with the UN and charities, the evidence behind the practice has come under attack. Are the criticisms justified? We hear from the different sides – both economists and epidemiologists and their approach to the numbers. (Photo: A nurse gives medecine to a child to prevent worms. Credit: AFP)