Using one document as a stick to beat the uninformed seems somewhat silly to me. The variation of the infection rate is large. Look for yourself in the document. According to USAID in some regions it amounts to 50%. I think this is the point the OP wanted to make. USAID do not agree fully with UNAIDS figures, especially in the north. (see f.i. http://www.washingtonpost.com/wp-dyn/content/article/2006/04... for some critique on statistical methods. Beware, it's from 2006).

Then again, the knowledge that there are people out there still dying on a large scale from this disease makes me feel informed ... but very silly when it comes to fights about the figures.