The number of known cases of HIV - the virus that causes AIDS - on the China has reached 10,676, nearly 30 per cent up on last year's total. Intravenous drug users accounted for nearly two-thirds of the cases, said Ministry of Health Vice-Director Yin Dakui. Mr Yin was addressing delegates to the World AIDS Conference in Beijing. His ministry said ethnic minorities living in Yunnan, Xinjiang, Henan, and Guangxi Provinces made up 36 per cent of HIV carriers.