最近，英国医学科学家研制出一种能帮助烟民戒烟的尼古丁疫苗。该疫苗像当年天花疫苗遏制天花一样，能奇迹般地帮助广大烟民摆脱烟瘾的困扰。该疫苗的作用机理是，通过刺激免疫系统使机体产生尼古丁抗体，从而避免尼古丁到达吸收器官并有力地阻止烟瘾的发作。该疫苗的关键在于 Recently, British medical scientists developed a nicotine vaccine that helps smokers quit smoking. The vaccine, like the smallpox in the same year that it used to contain smallpox vaccine, miraculously helped smokers to get rid of the problem of addiction. The mechanism of action of this vaccine is that nicotine antibodies are produced in the body by stimulating the immune system so as to prevent the nicotine from reaching the absorption organs and effectively prevent the onset of smoking. The key to the vaccine is