title: C.N.S. involvement after smallpox revaccination.
mesh_terms: D000293:Adolescent; D000328:Adult; D002493:Central Nervous System Diseases / Q000209:etiology*; D006801:Humans; D007117:Immunization, Secondary / Q000009:adverse effects*; D008875:Middle Aged; D012900:Smallpox Vaccine / Q000009:adverse effects*
chemical_list: D012900:Smallpox Vaccine