Avian proventriculitis vaccine, avian proventriculitis reovirus, process for preparing said vaccine and method of protecting a poultry animal against proventriculitis.

摘要

A process of preparing a vaccine capable of protecting poultry against avian proventriculitis which comprises : separating proventriculitis reovirus from reovirus-carrying tissue of a poultry animal diseased with proventriculitis; inoculating a cell culture capable of sustaining the growth and replication of the reovirus; extracting the virus from cellular and nonviral components, and rendering the reovirus into a form suitable for administration to poultry, yields a vaccine and an immunization method.