Smallpox vaccination can be safer: the case for waiting.
D000367:Age Factors; D006801:Humans; D007115:Immunization Schedule; D007223:Infant; D007231:Infant, Newborn; D007267:Injections; D012871:Skin Diseases / Q000209:etiology; D012899:Smallpox / Q000517:prevention & control*; D012900:Smallpox Vaccine / Q000009:adverse effects*; D014611:Vaccination / Q000009:adverse effects*
D012900:Smallpox Vaccine