October 27, 2021

Researchers Discover Reason for Broiler Vaccine Failure

Researchers at Auburn University have found the reason why vaccinations fail in some chickens in the U.S. The ARK IBV virus (Arkansas Infectious Bronchitis) causes infectious bronchitis in poultry even though the animals are vaccinated against it.

ChickenThe scientists found that the virus evolves as it replicates, making changes in the S1 protein that the chicken produces as a respond to the vaccination. These changes let the virus escape from the immune response. This discovery may lead to improved vaccines in the future.

THe ARK IBV virus is very difficult to control. Unfortunately, vaccination for one type of the virus doesn’t protect against all types. The research was funded by the U.S. Poultry & Egg Association.

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