One thing that has changed is that fewer people trust the WHO and the UN. Please refer this Link in relation to this matter.
Saturday December 01, 2007
Does the news that the United Nations overestimated the number of HIV infections mean the world has turned the tide on AIDS?
Not according to the most of the media coverage ahead of the 20th World Aids Day today.
The fact that the United Nations got it wrong about the number of people living with the virus is simply “a sampling error”, writes Donald McNeil in the International Herald Tribune.
Please refer link above for the full article.