 Based on a growing evidence base for the beneficial nature of antihelminthic treatment (deworming) in the early 1990s, the Partnership for Child Development was formed by the United Nations Development Programme and the Rockefeller Foundation within the Scientific Coordinating Centre at the University of Oxford.PCD is now based within Imperial College London's Department of Infectious Disease Epidemiology, in St Mary's Hospital, London, funded by international development organisations including the World Bank and the Bill and Melinda Gates Foundation.PCD supports low-income countries to meet their school health needs using the findings of evidence-based research.