1·The CPE of SA2 on CK cells, characterized by syncytia owing to coalescing by adjacent to infected cells, which included 5 ~ 10 nuclei.
SA2在鸡肾细胞上产生明显的细胞病变，病变特征为相邻感染细胞融合形成多核巨细胞，内含5 - 10个核。