Atorvastatin for HAART Suboptimal Responders

List of inclusion Criteria: HIV-infected adults on antiretroviral therapy for at least 6 years with sustained viral suppression (viral load\<400 copies), and CD4 increase below 300 cells (difference between current and baseline CD4 count). List of exclusion Criteria: History of an opportunistic infection within the previous six months, Pregnancy, History of myositis, History of ingestion of lipid-lowering agents at the baseline visit, Use of therapeutic agents known to have substantial drug-drug interactions with statins, and individuals on PI-containing HAART