Vaccination against Moroccan strains of Newcastle disease virus.
Different vaccination programmes commonly used in Moroccan poultry farms were tested for their capacity to protect chickens against two representative Moroccan strains of velogenic viscerotropic Newcastle disease virus under controlled conditions. All vaccination programmes protected the chickens against mortality and the inactivated vaccine gave the highest antibody titres and the best protection against respiratory symptoms.
Institut Agronomique et Vétérinaire Hassan II, Rabat-Instituts, Morocco.
J G
JG
Bell
M
M
Mouahid
D000818:Animals; D000914:Antibodies, Viral / Q000096:biosynthesis; D002645:Chickens / Q000276:immunology; D006385:Hemagglutination Inhibition Tests; D009018:Morocco; D009521:Newcastle Disease / Q000517:prevention & control*; D009522:Newcastle disease virus / Q000276:immunology*; D014611:Vaccination / Q000662:veterinary*; D014613:Vaccines, Attenuated; D014765:Viral Vaccines / Q000276:immunology
D000914:Antibodies, Viral; D014613:Vaccines, Attenuated; D014765:Viral Vaccines