三 大生化武器是毒性很大、传染性很强的天花、鼠疫和炭疽 ,这些细菌只要使用一次就可以使许多人死亡。天花天花这种细菌的毒性极大 ,经常可以致人死命 ,而且传染性也极强 ,是通过呼吸道和皮肤传染的。但现在人类还没有任何有效的药物可以对抗这种细菌。进行天花疫苗接种 ,这种 The three major biological and chemical weapons are the highly toxic and contagious smallpox, plague and anthrax that can kill many people if used once. This smallpox ceiling is extremely toxic and can often kill people, but it is also contagious and is transmitted through the respiratory tract and skin. But now humans do not have any effective drugs to fight this bacterium. Conduct smallpox vaccination, this