Colorectal cancer is considered to be one of the main causes of death all around the world. Various methods and strategies have been used to treat such kind and others of cancer. The traditional methods include: radiation, chemotherapy and surgery .Recently new approaches have been suggested and developed, one of these using Escherichia coli toxin, for the treatment of colorectal cancer. Unfortunately there is unexplained inverse relationship between the incidence of colorectal cancer and E.coli... Mehr