HIV Infections/immunology; Immunity, Mucosal/immunology; NK Cell Lectin-Like Receptor Subfamily B/immunology; T-Lymphocyte Subsets/immunology; Adult; Anti-HIV Agents/therapeutic use; Antiretroviral Therapy, Highly Active; Apoptosis/immunology; CD8-Positive T-Lymphocytes/immunology; CD8-Positive T-Lymphocytes/metabolism; CD8-Positive T-Lymphocytes/virology; Cells, Cultured; Cohort Studies; Escherichia coli/immunology; Female; Flow Cytometry; HIV/drug effects; HIV/immunology; HIV Infections/blood; HIV Infections/drug therapy; Humans; Immunohistochemistry; Interleukin-17/immunology; Interleukin-17/metabolism; Leukocytes, Mononuclear/immunology; Leukocytes, Mononuclear/metabolism; Leukocytes, Mononuclear/virology; Lymphocyte Count; Male; Middle Aged; NK Cell Lectin-Like Receptor Subfamily B/metabolism; Receptors, CCR5/immunology; Receptors, CCR5/metabolism; Receptors, CCR6/immunology; Receptors, CCR6/metabolism; T-Lymphocyte Subsets/metabolism; T-Lymphocyte Subsets/virology; Time Factors