title: Immunization of chicks at various ages with irradiated infective eggs of Ascaridia galli.
abstract: The possibility of safe immunization of chicks at an appropriate age with a double-dose irradiated Ascaridia galli vaccine given orally at two weeks interval was explored. Chicks immunized at 7 or 10 days of age were not affected adversely since they did not develop any clinical signs and there was no worm establishment after challenge infection. Immunization also elicited detectable circulating antibody titres, with IHA and the conglutinating complement absorption test having a tendency to be enhanced after the booster dose.
authors.affiliation: Division of Parasitology, Indian Veterinary Research Institute, Izatnagar.
authors.forename: H C
authors.initials: HC
authors.lastname: Malviya
authors.forename: T K
authors.initials: TK
authors.lastname: Varma
authors.forename: P
authors.initials: P
authors.lastname: Dwivedi
mesh_terms: D000367:Age Factors; D000818:Animals; D001197:Ascaridia / Q000276:immunology*; D001198:Ascaridiasis / Q000517:prevention & control; D002645:Chickens / Q000276:immunology* / Q000469:parasitology; D007114:Immunization / Q000379:methods; D010063:Ovum / Q000276:immunology / Q000528:radiation effects; D011201:Poultry Diseases / Q000276:immunology / Q000517:prevention & control; D014613:Vaccines, Attenuated / Q000008:administration & dosage / Q000276:immunology
chemical_list: D014613:Vaccines, Attenuated