Evidence indicates that a long period with no symptoms follows infection with HIV. Individuals who are infected with the virus could benefit from therapy with a drug that acts to kill the virus or to stimulate the immune system of the individual or both. The immune system is the means the human body has for fighting infections. Ampligen is a suitable drug for clinical trials against HIV because it has been shown to stimulate the immune system and to inhibit HIV in vitro (test tube) at drug levels that can be achieved without noticeable clinical side effects.