So it's not the actual HIV that virus that kills us but it's what it does that ultimately kills us. It's the fact that we create a very weak or the virus creates a very weak immune system and any infection whatsoever can essentially kill us off. Now, the next question is what's the big deal about these helper T cells? Why is it that when these helper T cells are destroyed our immune system becomes so weak? So we have many, many different types of white blood cells in our body and helper T cells are only one of these different types of white blood cells. So what exactly makes the helper T cells so special?