NEWCASTLE DISEASE: A SERUM NEUTRALISATION TEST IN TISSUE CULTURE.
D000818:Animals; D002642:Chick Embryo; D009500:Neutralization Tests; D009521:Newcastle Disease; D012106:Research; D012107:Research Design; D046509:Tissue Culture Techniques
CHICK EMBRYO; EXPERIMENTAL LAB STUDY; NEUTRALIZATION TESTS; NEWCASTLE DISEASE; TISSUE CULTURE