Dr. Mark Jackson of CEVA reported on the benefits of administering GA/08 vaccine to protect against four IB variants currently circulating in the U.S.  Specific pathogen-free chicks were vaccinated at five days of age with a bivalent GA/08 and Massachusetts combination.  Swabbing the choanal clefts post vaccination demonstrated successful administration.  Immunization was confirmed by demonstrating antibodies at 26 days of age.  At 28 days, birds housed in isolators were challenged with NC/dark, D/23, CA/1737/04, PA/1220/98 or DNV/1639/23.  Statistically significant reduction was noted in clinical response confirming the protective ability of the GA/08 vaccine.