title: Commentary: an unexpected finding that needs confirmation or rejection.
authors.affiliation: Department of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London. pfine@lshtm.ac.uk
authors.forename: P
authors.initials: P
authors.lastname: Fine
mesh_terms: D000293:Adolescent; D000328:Adult; D001500:BCG Vaccine / Q000009:adverse effects; D002648:Child; D015331:Cohort Studies; D015721:Diphtheria-Tetanus-Pertussis Vaccine / Q000009:adverse effects; D005260:Female; D005500:Follow-Up Studies; D006169:Guinea-Bissau / Q000453:epidemiology; D006801:Humans; D007223:Infant; D007226:Infant Mortality; D007231:Infant, Newborn; D008458:Measles Vaccine; D023321:Poliovirus Vaccines
chemical_list: D001500:BCG Vaccine; D015721:Diphtheria-Tetanus-Pertussis Vaccine; D008458:Measles Vaccine; D023321:Poliovirus Vaccines