A Study to Evaluate the Safety and Effectiveness of WF10 Given to Patients With Late-Stage HIV Disease

Inclusion Criteria Patients may be eligible for this study if they: * Are HIV-positive. * Have a CD4 cell count of less than 50 cells/mm3 within 14 days prior to study entry. * Are at least 18 years old. * Have received anti-HIV drugs at some time in the past. * Agree to practice abstinence or use effective methods of birth control, including the pill, during the study. Exclusion Criteria Patients will not be eligible for this study if they: * Are being treated for any form of cancer within 30 days of study entry. * Have ever received an HIV vaccine. * Have received steroids within 30 days prior to study entry. (Note: Testosterone is allowed.) * Have received certain medications, including anti-HIV treatments that are not approved by the FDA. * Have participated in another WF10 study. * Have an illness or any condition that might exclude them from this study. * Are pregnant or breast-feeding. * Abuse drugs or medications. * Received a blood transfusion within 45 days prior to study entry.