The AIDS virus can make people more predisposed to a form of cancer called Kaposi’s Sarcoma. Unlike most cancers that tend to localize in one part of the body, Kaposi's Sarcoma tends to appear in and on several parts of the body at the same time. The primary cause is not the AIDS virus, but is exposure to Human Herpes Virus 8 (HHV8). Human Herpes Virus 8 is far more contagious than HIV, with spread possible through salvia, through breastfeeding or by exposure to infected blood products.