This way, they created a non-toxic strain with enhanced skills in locating and obliterating cancer. The modified version was then injected into the circulatory systems of mice suffering from prostate cancer and the result was a success: the tumors decreased by about 20 percent compared to the control group. The healthy cells were not affected. “We found that the mice tolerated the treatment well”, Robert Kazmierczak, one of the researchers, said. The new method must be studied and tested multiple times before it could be applied in humans but every promising result may be an important step in the battle against cancer. Important financial resources are allocated for such researches worldwide.