Methods and compositions for vaccination of poultry
AssigneePfizer Inc.
InventorsVivian W. Doelling, Rebecca M. Poston, Cherilyn L. Heggen-Peay, Alan P. Avakian
Life of this patent
Estimating the term…
Abstract
The present invention provides methods of inducing an immune response against Clostridium species in birds, for protecting birds from Clostridium infection, and/or for protecting birds from related disorders such as necrotic enteritis. The methods can be practiced in ovo and/or post-hatch. The invention further provides compositions and methods for delivery of a composition of this invention in ovo directly to the embryo body.
Claims20
A method of immunizing an avian subject against Clostridium infection, comprising administering in ovo during the final quarter of incubation an effective immunizing dose of an immunogenic composition that induces an immune response against a Clostridium species, wherein the immunogenic composition is administered by in ovo injection.
Dependencies are inferred from the claim text.