Complications of smallpox vaccination.
D000367:Age Factors; D002675:Child, Preschool; D004673:Encephalomyelitis, Acute Disseminated / Q000209:etiology; D006801:Humans; D007223:Infant; D012900:Smallpox Vaccine / Q000009:adverse effects*; D014611:Vaccination
D012900:Smallpox Vaccine