In ovo interference of embryo non-lethal avian infectious bronchitis viruses (IBV) with velogenic Newcastle disease virus and embryo adapted IBV.
Avian infectious bronchitis virus (IBV) interfered with the lethal effects of velogenic Newcastle disease virus (NDV) and embryo adapted IBV in eggs previously inoculated with non-lethal IBV. Greater interference was noted in eggs superinfected with embryo adapted IBV than velogenic NDV. The interference could be eliminated by treating the initial IBV with homologous anti-IBV serum.
D000818:Animals; D002642:Chick Embryo; D003332:Coronaviridae / Q000472:pathogenicity*; D003333:Coronaviridae Infections / Q000382:microbiology; D001351:Infectious bronchitis virus / Q000472:pathogenicity*; D009521:Newcastle Disease / Q000382:microbiology; D009522:Newcastle disease virus / Q000472:pathogenicity*; D009924:Organ Culture Techniques; D014132:Trachea; D014762:Viral Interference