Source: Michael Fielding, MEATINGPLACE, 12/2/13

Researchers at Auburn University have completed a project that advances the understanding of vaccination against Arkansas Infectious Bronchitis (ARK IBV).

The project – “Immunity Elicited by IBV Ark-type S1 Proteins: Role of Head-Associated Lymphoid Tissues and Spleen" – was funded by the U.S. Poultry & Egg Association.

Despite widespread vaccination, ARK IBV continues to sporadically cause disease in U.S. broilers.

The researchers found that tiny changes in the structure of the virus allow it to evade the immune system of the chicken. This research helps explain the cause of apparent vaccine failures and may lead to improved vaccines in the future.

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