Inclusion Criteria

Patients must have:

• HIV infection, as documented by enrollment in HIVNET D01.1 (Part A patients) or by standard HIV serological tests or demonstrated HIV infection on virologic assay (Part B patients).

Part A only:

• Previous enrollment in infected-participants cohort of HIVNET D01.

Part B only:

• Initial HIV-seronegativity on an HIVNET protocol (other than an HIV vaccine protocol) and testing positive for HIV at a subsequent clinic visit.
• Confirmation of HIV infection and documentation of HIV negative antibody test within 8 months of first positive test.

Exclusion Criteria

Co-existing Condition:

Patients with the following conditions are excluded:

• An obvious psychological/psychiatric disorder that would invalidate the informed consent process or otherwise contraindicate participation in the study.

Prior Medication:

Excluded:

• Participation in a HIVNET HIV vaccine trial.