title: Smallpox vaccination after the first birthday--is anyone listening?
mesh_terms: D000367:Age Factors; D006801:Humans; D007223:Infant; D012899:Smallpox / Q000517:prevention & control*; D012900:Smallpox Vaccine; D014611:Vaccination / Q000009:adverse effects*
chemical_list: D012900:Smallpox Vaccine