AIDS/HIV Acquired Immune Deficiency Syndrome, better known as AIDS, is caused by the incurable HIV virus. AIDS is a deadly disease that deteriorates the immune system. There are two groups of HIV (human immunodeficiency virus), HIV-1 that occurs throughout the world and HIV-2 that mainly occurs in Africa. The HIV virus enters the white blood cells and takes over the reproductive system of that cell and uses the system to reproduce itself. The white blood cell dies and the new HIV cells infect other white blood cells and repeat the process. The Person with the disease will eventually die because the white blood cell dies off tottally. If you have become infected with the AIDS disease you may not h