Editor Peter M English MB ChB FPCert MRCGP MPH MFPHM Consultant in Communicable Disease Control, Surrey and Sussex Health Protection Unit, Health Protection Agency, Leatherhead. Editorial Board Linda E Diggle PhD MSc (Nursing) BSc (Hons) BA RGN RM Head of Healthcare Programmes, Public Health Department, Le Bas Centre, St Helier, Jersey. Paul T Heath MB BS (Hons) FRACP FRCPCH Reader and Honorary Consultant in Paediatric Infectious Diseases, St George’s, University of London. George Kassianos MD (Hons) FRCGP FFTM RCPS Glasg FRSM DRCOG GP, Bracknell; RCGP Immunisation Lead; Spokesperson, British Travel Health Association. Judith Moreton SRN RHV MSc Immunisation Advisor, Oxford Vaccine Group.