Plant as the delivery vehicle for vaccine can express antigen in edible parts such as seeds and tubers. 植物作为生产疫苗的载体可将抗原表达于植物的可食部位。
A virus will remain relatively safe from immune destruction if it remains within the cell and allows only very low or no viral antigen expression on the infected cell membrane. 如果病毒一直在细胞内并且只有很少或几乎无抗原表达到感染细胞膜上。
