title: Host pathogenicity of variola virus for experimental animals.
mesh_terms: D000818:Animals; D000830:Animals, Laboratory / Q000276:immunology; D002642:Chick Embryo; D002645:Chickens; D004198:Disease Susceptibility; D006168:Guinea Pigs; D006801:Humans; D008854:Microscopy, Electron; D011817:Rabbits; D012899:Smallpox / Q000382:microbiology*; D012901:Variola virus / Q000472:pathogenicity* / Q000648:ultrastructure