Virological evidence for the success of the smallpox eradication programme.
D000818:Animals; D004197:Disease Reservoirs; D000882:Haplorhini; D049690:History, Ancient; D049711:History, Modern 1601-; D006801:Humans; D008992:Monkey Diseases / Q000635:transmission; D011212:Poxviridae / Q000254:growth & development; D011213:Poxviridae Infections / Q000635:transmission / Q000662:veterinary; D012899:Smallpox / Q000453:epidemiology / Q000266:history / Q000517:prevention & control* / Q000635:transmission; D013045:Species Specificity