edward jenner, an english physician and scientist who pioneered the concept of vaccines and created the smallpox vaccine, 19th century - 正痘病毒屬 幅插畫檔、美工圖案、卡通及圖標天花病毒
vaccinia virus particle (vv), colored transmission electron micrograph (tem) - 正痘病毒屬 幅插畫檔、美工圖案、卡通及圖標病毒