title: Pathogenicity of tick-borne encephalitis virus for the chicken embryo. I. Influence of chicken embryo age and incubation temperature on the lethal activity of the virus.
mesh_terms: D000818:Animals; D002642:Chick Embryo; D004530:Egg Yolk; D004669:Encephalitis Viruses, Tick-Borne / Q000472:pathogenicity*; D005260:Female; D066298:In Vitro Techniques; D009026:Mortality; D013696:Temperature