Patients will be informed of all potential risks. The proposed study will involve adult men and women infected with HIV-1. All participants will be interviewed. Participants may experience discomfort while answering some of the questions regarding socio-economic status. Participants may also be uncomfortable discussing or providing stool samples for helminth screening. Study staff including social workers and/or peer counselors may contact the participants by telephone or visit the participants in their home if scheduled appointments are missed. These visits will be conducted in a manner designed to protect confidentiality but it is impossible to completely eliminate the risk of further social stigmatization for participants.