人们只要吃一支香蕉或者是一只桔子或者是几片饼干,就可以有效地预防疾病。这一神话般的科学设想,正在科学家的实验室里成为现实。现代科学技术已经能够将普通的蔬菜、水果、粮食等作物,采用生物遗传基因工程改变成为预防疾病的疫苗。 英国一位研究生物遗传学的科学家,通过多年的潜心研究,应用植物细胞嫁接抗原基因的技术,培育出一种可以预防霍乱发生的苜蓿品系,并进行繁育、种植。目前已经收获了上百公斤的含有霍乱抗原的苜蓿,通过对小白鼠喂养实验,证实具有令人满意的免疫功效。这种嫁接于苜蓿细胞内的 People simply eat a banana or an orange or a few cookies, you can effectively prevent the disease. This fabulous scientific concept is being realized in scientists’ laboratories. Modern science and technology have been able to transform common crops such as vegetables, fruits and grains into bio-genetic engineering vaccines for disease prevention. A British scientist studying genetics, through years of painstaking research, the application of plant cell grafting antigen gene technology, to cultivate a can prevent the occurrence of cholera alfalfa strains, and breeding, planting. Up to now, hundreds of kilograms of alfalfa containing cholera antigens have been harvested, which have been shown to have satisfactory immunological efficacy by feeding mice. This grafting in alfalfa cells