Chinese Center for Disease Control and Prevention (CCDC) has launched a campaign to identify the roots of new HIV infections.

The survey centers on the HIV-positives' history of infection and their current conditions, and the difference between the newly reported infections and those of the past. The findings will guide the country's AIDS prevention strategy.

The move, organized by the Ministry of Health (MOH), covers all the HIV-positives as well as those who are mostly likely to become infected reported from August 1 to September 30 in pilot areas. About 29 counties and districts of the southwest Chongqing Municipality and Yunnan Province, the south Guangdong Province, and the central Henan Province are on the pilot list.

(Xinhua News Agency August 8, 2008)