Antiretroviral therapy for HIV infection. Heartening successes mixed with continuing challenges

Probably nothing in the field of medicine has changed as rapidly over the last decade as antiretroviral (ARV) therapy for HIV infection. New insights into pathogenesis, new tests for measuring virus levels in plasma, and availability of powerful new drugs have combined to transform the care of persons with HIV infection into a field infused with real hope. However, ARV therapy remains complex, expensive, and not universally effective or available. This article focuses on a general approach to the use of ARV agents.