title: Study of the virulence of tick-borne encephalitis virus. IV. Thermosensitivity of virions and its relationship to other genetic markers.
mesh_terms: D000818:Animals; D002642:Chick Embryo; D046508:Culture Techniques; D004669:Encephalitis Viruses, Tick-Borne / Q000472:pathogenicity*; D006358:Hot Temperature; D051379:Mice; D009154:Mutation; D014774:Virulence; D014776:Virus Cultivation