The mactivated-F48E9, the capsule protein from F48E9 were observed and the allantoic fluid from SPF-chickens was used as a control.

• 同时，对其灭活毒以及从该毒株提取的囊膜蛋白诱导鸡T淋巴细胞的程序性死亡现象进行了观察，并以健康SPF鸡胚囊液作为对照。