1. The origin of the word:

Siegfried’s cloak of invisibility, called “tarnkappe” (tarnen, to conceal; kappe, a cloak). It not only made the wearer invisible, but also gave him the strength of twelve men. (Tarnkappe, 2 syl.)

2. Tumor cells want to survive like all the other cells in our body. Our immune system tries to attack these malignant cells, which causes these cells to protect themselves by producing a liquid substance that the immune cells don't recognize them. Malignant cells have the ability to disguise themselves in many ways, thus fooling our immune system while they spread out all over in our bodies until we die. After the operation we have to start the immune restoring program, which I would like to explain to you in various steps.


3. If, however, that invader keeps changing its biochemical "disguise," the immune system cannot keep up and the pathogen gets an ...
www.hbcollege.com/lifesci/bioweb/depts/public/apr99.html