You might be interested in another theory believed by many that fungus is the root of cancer. That cancer is actually fungus. One nutritional researcher who is on TV and has written many books is named Doug Kauffman. One of his books is THE GERM THAT CAUSES CANCER. His website is knowthecause.com.
I've watched his show since 2004 and read his books and believe his ideas are sound. I thought you might want to check him and his information out.