There's also Human Herpes Virus 8 that causes Kopsi's Sarcoma[0]. Nearly all cases are found in immunocompromised individuals, and in times/places without HAAR

There's also Human Herpes Virus 8 that causes Kopsi's Sarcoma[0]. Nearly all cases are found in immunocompromised individuals, and in times/places without HAART readily available, it is/was a common cancer in HIV+ people. In these cases, in some sense a co-infection of HHV-8 and HIV causes the cancer. [0] https://en.wikipedia.org/wiki/Kaposi%27s_sarcoma https://en.wikipedia.org/wiki/Kaposi%27s_sarcoma