Rare type of cancer mainly seen in people with poorly controlled or severe HIV infection. It can affect some people with weakened immune system. It can affect the skin and internal organs.
It is caused by the human herpesvirus 8 (HHV-8), otherwise known as the Kaposi’s sarcoma-associated herpesvirus (KSHV). This virus is thought to be spread during sex, through saliva, or from a mother to her baby during birth. A weakened immune system allows the virus to multiply in the blood, which increases the chance of developing Kaposi’s sarcoma.