LONDON - A new global network of scientists has been set up with the goal of helping all countries control infectious diseases. Instead of focussing on specific illnesses the Research Network For Health Systems And Infection - based at the London School of Hygiene & Tropical Medicine - concentrates specifically on improving health-care delivery systems. Mr Greg Reilly and Professor Anne Mills of the London School of Hygiene & Tropical Medicine join Professor David Heymann, Chair of the UK Health Protection Agency (and former Representative of the Director-General for Polio Eradication - World Health Organization) to tell Sarah Maxwell about the paramount importance of organising excellent health systems as a pre-requisite for establishing health for all.