The World Health Organization (WHO) has recommended that health authorities in all nations routinely vaccinate young children against rotavirus, which causes 2 million hospitalizations and 500,000 deaths from severe diarrhoeal dehydration every year. Rotavirus vaccines are already recommended for use in the Americas and Europe. But more than 85% of deaths caused by rotavirus occur in developing countries in Asia and Africa, says the WHO. The recommendation was made by the WHO's Strategic Advisory Group of Experts, which reviewed a clinical trial of GlaxoSmithKline's Rotarix vaccine in South Africa and Malawi that cut the occurrence of severe diarrhoeal episodes. RotaTeq,...