All 50 states, the District of Columbia, and U.S. territories conduct AIDS surveillance using a standardized, confidential name-based reporting system.

One of the challenges of AIDS surveillance is the accurate identification of cases attributed to heterosexual transmission, Dr. Ward said.

Since 1981, states have conducted AIDS surveillance, and few breaches of security have resulted in the unauthorized release of data (70,71).

Assessment of laboratory reporting to supplement active AIDS surveillance - Colorado.

The impact of the 1993 AIDS case definition on the completeness and timeliness of AIDS surveillance.

Integrating HIV and AIDS surveillance: a resource manual for surveillance coordinators.

The expanded AIDS surveillance case definition is expected to have a substantial impact on the number of reported cases.

Dr. Ruth Berkelman, chief of AIDS surveillance for the disease control centers, said, "There has been a leveling in reported cases."

Dr. Pauline Thomas, the city's director of AIDS surveillance, said, "You want to target prevention where the infection is."

AIDS in 2005 (For information about AIDS surveillance, see the box, before the References section.)