CDC

The Centers for Disease Control and Prevention (CDC, US) is the lead agency for disease prevention and control, environmental health, and health promotion and education. It is an agency of the Department of Health and Human Services. It's website provides information and links for a broad range of health issues, including HIV/AIDS.



ClinicalTrials.gov

ClinicalTrials.gov provides regularly updated information about federally (US) and privately supported clinical research in human volunteers, including HIV/AIDS.



NIAID

The National Institute of Allergy and Infectious Diseases (NIAID, US) conducts and supports basic and applied research to better understand, treat, and ultimately prevent infectious, immunologic, and allergic diseases, including HIV. It's website provides extensive information on the epidemic, current research and treatment information.



UNAIDS

The Joint United Nations Programme on HIV/AIDS, (UNAIDS, Global), is the main advocate for global action on the epidemic. It's website provides extensive information and links for policy, epidemiology, global resources and current news.