The smallpox vaccine: frequently asked questions.
D006801:Humans; D011212:Poxviridae / Q000276:immunology; D012307:Risk Factors; D012899:Smallpox / Q000635:transmission / Q000821:virology; D012900:Smallpox Vaccine / Q000008:administration & dosage / Q000009:adverse effects; D014615:Vaccinia / Q000821:virology
D012900:Smallpox Vaccine