The AIDS epidemic update reports on the latest developments in the global AIDS epidemic and has been published annually since 1998. The 2007 edition provides the most recent estimates of the epidemic's scope and human toll and explores new trends in the epidemic's evolution. This is a joint UNAIDS and WHO report and the estimates produced by the UNAIDS/WHO Working Group on Global HIV/AIDS and STI Surveillance are based on methods and parameters that are informed by the UNAIDS Reference Group on HIV/AIDS Estimates, Modelling and Projections.
http://data.unaids.org/pu…007/2007_epiupdate_en.pdf