Inactivated viral vaccine

The antigens are inactivated with formalin or β-propiolactone and suspended in the aqueous phase of an water in oil adjuvant emulsion, in order to enhance a prolonged stimulation of immunity.

The vaccine is intended to stimulate active immunity against Avian Rhinotracheitis virus, against the Massachusetts and D274/D207 serotypes of Infectious Bronchitis virus and against Newcastle disease; and to stimulate active immunity against Infectious Bursal (Gumboro) Disease in order to provide passive immunity to the progeny.

An enhanced immune response is obtained when the product is used for booster immunisation after priming the birds with live vaccines, if available, against Infectious Bronchitis, Rhinotracheitis, Newcastle Disease and Infectious Bursal Disease. The best results will be obtained if vaccination with the inactivated vaccine takes place at least 4 weeks after administration of the live primer.