China has developed successfully the vaccine on poultry disease gene

After five-year-long effort, Changjiang University of Hubei developed the first vaccine about poultry infectious gene project in China.
Chinese Veterinary drugs Supervision Bureau do some immunity protection experiment to test this new-type vaccine on Chicken Infectious Bursal Disease, and its result shows that the vaccine is not poisonous; does not do harm to chicken' bursa of Fabricius; does not influence other vaccine' immunity effect; its production cost is lower than other inactivated vaccine used at present in China.
Source: www.chinafeed.info