Complications of smallpox vaccination.
D002648:Child; D002675:Child, Preschool; D004673:Encephalomyelitis, Acute Disseminated; D006801:Humans; D007223:Infant; D012871:Skin Diseases / Q000209:etiology*; D012900:Smallpox Vaccine / Q000009:adverse effects*
D012900:Smallpox Vaccine