Biologic and immunologic characteristics of cold-adapted influenza virus.
D000818:Animals; D003080:Cold Temperature; D006385:Hemagglutination Inhibition Tests; D006386:Hemagglutination Tests; D006863:Hydrogen-Ion Concentration; D051379:Mice; D009975:Orthomyxoviridae / Q000276:immunology*; D012377:Rodentia; D014774:Virulence