PHILADELPHIA - Pharmaco-vigilance was being urged here - as a key part of the strategy to improve malaria control in Africa and elsewhere - in a special session devoted to malaria drug safety at the American Society of Tropical Medicine and Hygiene annual conference. With the battle against malaria slowly being won in Africa, the safety of anti-malarial drugs is of paramount importance now they are being used more widely than ever. Session chair Professor David Schellenberg of the London School of Hygiene and Tropical Medicine told Peter Goodwin about their findings and conclusions.