The typical adenovirus was observed with electro-microscope by sample of purified NGVEV of DEF cell culture, approximately 70-90 nanometer (nm).

• 将适应DEF的NGVEV 感染DEF细胞后经超薄切片及电镜观察,可见典型的腺病毒粒子,病毒粒子大小为70-90nm。