Derek Thorne and Peter Goodwin talk with Bayard Roberts, Si\xe2n Clarke, Sandy Cairncross, Claire Bertschinger and Virginia Berridge of The London School of Hygiene and Tropical Medicine about:\n- depression and post traumatic stress disorder in war-torn northern Uganda and the lessons to be drawn from a research project there;\n\n- the unexpected additional value of using malaria drugs at regular intervals among school children in Kenya;\n\n- the key role of sanitation in preventing infant deaths all over the world and what is being done to improve it;\n\n- the life and work of the nurse who inspired Band Aid and Live Aid, as she receives an honorary doctorate;\n\n- the \u201cmarketing\u201d of health to the British public, as illustrated by the way attitudes to smoking have changed over the years.