INFECTIOUS BURSAL DISEASE VACCINE (LIVING);GUMBOVAX IS A LIVE ATTENUATED VIRUS OF GUMBORO DISEASE WHICH IS;FREEZE-DRIED IN THE FINAL CONTIANERS AND SEALED UNDER VACUUM.;THE VACCINE IS MADE WITH TISSUES AND FLUIDS OF EMBRYONATED CHICKEN;EGGS OBTAINED FROM SPECIFIC PATHOGEN FREE (SPF) FLOCKS.