Nature of immunity to Newcastle disease in vaccinated chickens. 3. Correlation of signs, virus isolation, and serology following challenge.
D000818:Animals; D006385:Hemagglutination Inhibition Tests; D009500:Neutralization Tests; D009521:Newcastle Disease / Q000276:immunology / Q000662:veterinary*; D009522:Newcastle disease virus / Q000302:isolation & purification*; D011201:Poultry Diseases / Q000276:immunology*; D014611:Vaccination