[Effectiveness of a native virus vaccine against Marek's disease].
D000818:Animals; D002645:Chickens; D006564:Herpesviridae / Q000276:immunology; D008380:Marek Disease / Q000276:immunology*; D014611:Vaccination / Q000662:veterinary*
Effektivnost' nativnoĭ virusvaktsiny protiv bolezni Mareka.