title: Fowl cholera: influence of Bordetella avium on vaccinal immunity of turkeys to Pasteurella multocida.
abstract: Turkeys exposed to Bordetella avium were vaccinated against fowl cholera with live Pasteurella multocida vaccine. Previous exposure to B. avium resulted in impairment of systemic immunity conferred by the vaccine: 86% of the vaccinated turkeys exposed to B. avium at 1 day old developed lesions or died of fowl cholera after challenge at 15 weeks old with virulent P. multocida. Of vaccinated turkeys not previously exposed to B. avium, only 26% had lesions or died of fowl cholera.
mesh_terms: D000818:Animals; D001428:Bacterial Vaccines / Q000276:immunology*; D001884:Bordetella; D010326:Pasteurella Infections / Q000517:prevention & control / Q000662:veterinary*; D011201:Poultry Diseases / Q000382:microbiology / Q000517:prevention & control*; D014422:Turkeys / Q000276:immunology*; D014611:Vaccination / Q000662:veterinary*
chemical_list: D001428:Bacterial Vaccines