title: PRESENCE OF A NEWCASTLE DISEASE-LIKE AGENT IN CHICKEN EMBRYO CELLS: A PRELIMINARY NOTE.
mesh_terms: D000818:Animals; D002642:Chick Embryo; D002645:Chickens; D006384:Hemagglutination; D006386:Hemagglutination Tests; D009521:Newcastle Disease; D009522:Newcastle disease virus; D011201:Poultry Diseases; D046509:Tissue Culture Techniques; D014611:Vaccination; D014776:Virus Cultivation
keywords: CHICK EMBRYO; HEMAGGLUTINATION; NEWCASTLE DISEASE; NEWCASTLE DISEASE VIRUS; POULTRY DISEASES; TISSUE CULTURE; VACCINATION; VIRUS CULTIVATION