Under the electron microscope, the viron was 103 nm in diameter and had characteristic bulbous projections on the envelope of 19 nm in breadth as well as typical U-shaped structure inside the viron.

• 在电子显微镜下,病毒粒子直径为103nm,有19nm 宽的囊膜,囊膜上有典型的球状突起呈花冠状。 病毒粒子内部有一典型的马蹄型结构