Research Progress on Novel Vaccine of Avian Influenza

Avian influenza(AI)is an acute respiratory disease caused by influenza A virus.Avian influenza virus(AIV)can infect poultry,wild birds and some mammals including human.AI is a big threat to both poultry and human health because the virus can cross the species barrier to get the capacity of transmitting from poultry to human.Vaccination is the most efficient measure against AI outbreaking.Traditional vaccines include inactivated vaccine based on chick embryo and attenuated vaccine.Although the traditional vaccines play important roles in the past AI epidemics,many disadvantages have been proved to exist in traditional vaccines.Forced by major drawbacks of traditional vaccines,several studies focused on the development of novel vaccines.In this review,we reviewed recombinant live vector vaccine,subunit vaccine,DNA vaccine and viruslike particle vaccine of AI in order to provide some references for prevention and control of AI.