vaccine composition effective in preventing or ameliorating infectious bursal disease virus infection; vaccine composition; antigenic isolate of infectious bursal disease virus; and method for inducing protection against infectious bursal disease virus infection

摘要

EFFECTIVE VACCINE COMPOSITION IN PREVENTION OR IMPROVEMENT OF INFECTIOUS BURSAL DISEASE VIRUS INFECTION; VACCINE COMPOSITION; ANTIGENIC ISSUED OF INFECTIOUS BURSAL DISEASE VIRUS; AND METHOD FOR INDUCING PROTECTION AGAINST INFECTIOUS BURSAL DISEASE VIRUS INFECTION. These are antigenic isolates and Infectious Bursal Disease virus vaccines that include variants of the IBDV Group 6 molecular family of isolates, in particular isolate 28-1.