title: Comparative studies on the properties of variola virus strains. II. Pathogenicity for suckling mice and gamma-irradiated adult white mice.
mesh_terms: D000367:Age Factors; D000818:Animals; D051379:Mice / Q000528:radiation effects; D011830:Radiation Effects; D012899:Smallpox / Q000209:etiology / Q000473:pathology*; D013045:Species Specificity; D012901:Variola virus / Q000472:pathogenicity*; D014774:Virulence