title: Observations on the use of Komarov strain of Newcastle disease vaccine in the Sudan.
abstract: Broilers at 18 days old were vaccinated with a single dose of the K strain of Newcastle disease vaccine administered by different routes. The serological results obtained by haemagglutination inhibition at weekly intervals post-vaccination showed that birds vaccinated intranasally (i/n) or intramuscularly (i/m) had antibody titres higher than those vaccinated by the oral method. Furthermore, when challenged 3 weeks after vaccination, those broilers vaccinated i/n or i/m had 75% and 70% resistance respectively, while those vaccinated by the oral or spray methods failed to withstand the challenge.
authors.affiliation: Veterinary Research Administration, Soba, Khartoum, Sudan.
authors.forename: M A
authors.initials: MA
authors.lastname: Gaffar Elamin
authors.forename: A I
authors.initials: AI
authors.lastname: Khalafalla
authors.forename: S M
authors.initials: SM
authors.lastname: Ahmed
mesh_terms: D000281:Administration, Intranasal; D000284:Administration, Oral; D000818:Animals; D002645:Chickens / Q000276:immunology*; D006385:Hemagglutination Inhibition Tests / Q000662:veterinary; D007273:Injections, Intramuscular / Q000662:veterinary; D009521:Newcastle Disease / Q000276:immunology / Q000517:prevention & control*; D009522:Newcastle disease virus / Q000276:immunology*; D011201:Poultry Diseases / Q000276:immunology / Q000517:prevention & control*; D013397:Sudan; D014611:Vaccination / Q000662:veterinary*; D014765:Viral Vaccines
chemical_list: D014765:Viral Vaccines