PROTECTION OF CHICKENS AGAINST AVIAN INFLUENZA WITH RECOMBINANT FOWLPOX VIRUE EXPRESSING HA-NA, HA-NP OR NP OF AVIAN INFLUENZA VIRUS
PROTECTION OF CHICKENS AGAINST AVIAN INFLUENZA WITH RECOMBINANT FOWLPOX VIRUE EXPRESSING HA-NA, HA-NP OR NP OF AVIAN INFLUENZA VIRUS
表达禽流感病毒HA-NA、HA-NP及NP基因重组禽痘病毒的构建及其免疫效力的研究