). Subsequently, various questions raised in these reviews have been addressed. In particular, we prepared an updated review of nonvaccine, diarrhoeal interventions for the Xth World Congress of Gastroenterology, and present here a summary of our findings. Focusing on the questions raised in the original reviews, the four nonvaccine interventions identified as being adequately feasible and effective are covered: promotion of breast-feeding; improving wean-ing practices; improving water supply and sanitation; and promotion of personal and domestic hygiene. Two preventive strategies that were identified as requiring further research are also included: vitamin A supplementation and the prevention of low birth weight. A third, food hy-giene, is included here as part of the assessment of improving weaning food practices.