The idea of “catching cancer” is pretty horrifying, right? Cancer is devastating as it is, but the idea of the disease being contagious is hard to imagine. There are certain viruses, such as Human Papillomavirus (HPV) and Kaposi’s sarcoma-associated herpesvirus, that can cause cancer in humans but to date, there has been no evidence that human tumor … More Cancer: A Contagious Disease for Some Species?