Last year I showed a few posters that I came across on the street, and mentioned the widespread TV coverage (including news presenters wearing red ribbons). The standard of coverage in the Chinese media gets better and better each year. That said, it's difficult to find tables with easily comparable statistics, so I have taken the following information from a couple of articles roughly one year apart.
Gansu HIV/AIDS figures
1993 - 2008*
People living with HIV: 626
New cases of HIV infection: 160 (January - October 2008), an increase of 26.3% on 2007
AIDS cases: 187
Deaths: 107
The overall percentages of transmission by cause are as follows:
Drug use: 33.87%
Heterosexual sex: 20.93%
Homosexual sex: 9.11%
Blood transfusion: 15.97%
Mother-to-child: 2.5%
Don’t know: 17.73% (estimated that sex is the main cause)
Significant points:
86.42% of all infections are within the 20-49 years age group
Cases due to sexual transmission are rising (40.63% of new cases in 2008)
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1993-2009*
People living with HIV: 889
New cases of HIV infection: 207 (January - September 2009), an increase of 29.4% on 2008
AIDS cases: 281
Deaths: 144
Transmission (less detailed than the previous year):
Heterosexual sex: 20.97%
Homosexual sex: 10.56%
Significant points:
Most new infections are through sexual transmission
The two groups most at risk are 19-25 years old, and males over 60 years old
HIV infections in 3 locations:
Lanzhou (232 in 2008, rising to 347 in 2009)
Tianshui (115, rising to 148)
Linxia (83, rising to 96)
Sources
2008: http://www.chain.net.cn/zhxw/xwbd/22093.htm
2009: http://news.pharmnet.com.cn/news/2009/10/21/280780.htm
More information
HIV/AIDS in the People's Republic of China (Wikipedia)
HIV/AIDS hits 740,000 Nationwide (China Daily, November 24 2009)
*The first recorded case of HIV infection in Gansu was in 1993