South Korean scientists have invented non-toxic salmonella to carry destructive proteins to cancer cells. These destructive proteins kill only cancer cells leaving good tissue undamaged. This is a further and exciting new development. The French Nanobiotix company used the notion of nanites attacking the cancer cells, but this South Korean innovation goes another step further. This new development uses live bacteria (Non-toxic salmonella) to home in on cancer cells and once the bacteria is linked to the malignant cell; the proteins that have hitched a ride on board begin to attack the harmful cells.