TISSUE-CULTURE SYSTEMS WITH NEWCASTLE DISEASE VIRUS AND RELATIONSHIP OF ANTIGENICITY TO IMMUNOGENICITY AMONG STRAINS.
D000818:Animals; D000917:Antibody Formation; D000941:Antigens; D002642:Chick Embryo; D009500:Neutralization Tests; D009522:Newcastle disease virus; D012106:Research; D046509:Tissue Culture Techniques; D014612:Vaccines
D000941:Antigens; D014612:Vaccines
ANTIGENS; CHICK EMBRYO; EXPERIMENTAL LAB STUDY; NEUTRALIZATION TESTS; NEWCASTLE DISEASE VIRUS; TISSUE CULTURE; VACCINES