The World Health Organization's annual http://www.who.int/whr World Health Report tracks deaths from many causes, including infectious diseases.

For information from the CDC, visit the Web sites for the http://www.cdc.gov/ncidod/osr/index.htm National Center For Infectious Diseases' Surveillance Resources, the http://www.cdc.gov/mmwr/distrnds.html Morbidity and Mortality Weekly Report Disease Trends, and/or the http://www.cdc.gov/nchs National Center for Health Statistics.

Information on the transmission of HIV/AIDS in the United States is available from regularly updated CDC HIV/AIDS Surveillance Report. Statistics on the worldwide epidemic are available from UNAIDS.