STRAIN STABILITY AND IMMUNOLOGIC CHARACTERISTICS OF A TISSUE-CULTURE-MODIFIED INFECTIOUS LARYNGOTRACHEITIS VIRUS.
D000818:Animals; D002642:Chick Embryo; D006564:Herpesviridae; D001352:Herpesvirus 1, Gallid; D011201:Poultry Diseases; D012106:Research; D046509:Tissue Culture Techniques; D014611:Vaccination; D014776:Virus Cultivation
CHICK EMBRYO; EXPERIMENTAL LAB STUDY; HERPESVIRUS; POULTRY DISEASES; TISSUE CULTURE; VACCINATION; VIRUS CULTIVATION