Inclusion Criteria

Patients may be eligible for this study if they:

• Are HIV-positive.
• Have had at least one CD4 cell count greater than or equal to 350 cells/mm3 within 30 days of study entry.
• Are at least 18 years old.
• Agree to abstinence or use of effective methods of birth control 1 month before and during the study.

Exclusion Criteria

Patients will not be eligible for this study if they:

• Have a history of a potentially life-threatening autoimmune or inflammatory disease.
• Abuse alcohol or drugs, or have any serious psychiatric or medical illnesses that would affect their safety or ability to complete the study.
• Have a history of an AIDS-defining illness.
• Have a history of cancer, other than Kaposi's sarcoma.
• Have ever taken IL-2 or any antiretroviral medications.
• Are pregnant.
• Are taking certain medications, including anti-seizure medications.