Effectiveness of an HIV Vaccine in HIV-Negative Adults in North America Who Are at Risk of HIV Infection

You may not be if

• You will not be eligible for this study if you:
• Use injection drugs.
• Have a history of any serious diseases or conditions, including lymphoma.
• Have ever received an HIV vaccine.
• Have taken post-exposure treatment to prevent HIV infection within 4 weeks prior to study entry.
• Are planning to take other HIV vaccines during this study.
• Are pregnant.
• Have taken certain medications or received certain therapies, including chemotherapy and radiation.
• Have received certain vaccines within 2-4 weeks prior to study entry.
• You may be eligible for this study if you:
• Are HIV-negative.
• Are between 18 and 60 years old.
• Are available for 3 years of follow-up.
• Agree to use effective methods of birth control during the study and for 90 days after.
• Are one of the following:
• A woman who is currently in a sexual relationship with an HIV-positive man.
• A woman who has had more than one male partner and at least one sexually transmitted disease (STD) within the past 12 months.