Peek inside the human genome and, among the 20,000 or so genes that serve as building blocks of life, you'll also find flecks of DNA left behind by viruses that infected primate ancestors tens of millions of years ago. These ancient hitchhikers, known as endogenous retroviruses, were long considered inert or... read full story
"Our study shows that diseases today can be significantly influenced by these ancient viral infections that until recently very few researchers were paying attention to,"