MyVAC UPM93 IBD vaccine is a vaccine for chickens specifically against vvIBDV field challenged. The vaccines seed virus was novel and unique with molecular characteristics of the viral protein of the virus is highly homology to vvIBDV field strains in Asia and Europe. It is safe, effective and able to induce high and protective levels of IBD antibody even in, chicken flocks with different levels of maternally derived antibody. The vaccine only causes mild to moderate bursal lesion with bursal recovery, without causing immunosuppression and interruption of feed conversion ratio performance of the chickens.