title: Commentary: vaccines and unexpected events.
authors.affiliation: London School of Hygiene & Tropical Medicine, Keppel Street, London WC1E 7HT, UK. andy.hall@lshtm.ac.uk
authors.forename: Andrew
authors.initials: A
authors.lastname: Hall
mesh_terms: D000354:Africa, Western / Q000453:epidemiology; D003906:Developing Countries; D006801:Humans; D007115:Immunization Schedule; D007223:Infant; D007226:Infant Mortality; D014611:Vaccination / Q000009:adverse effects*