Global health officials say a decline in the number of AIDS cases worldwide is mostly on paper because previous estimates were inflated.
The World Health Organization and the United Nations AIDS agency say the decline of more than 6 million cases this year is the result of a new methodology. U.N. officials aren't ruling out future downward corrections.
There were more than 33 million AIDS cases in 2007, down from almost 39.5 million last year.
Although the decline is largely due to revised numbers, U.N. officials still say the figures show the AIDS pandemic is losing momentum and that AIDS deaths have declined for the first time.
While the global AIDS numbers are falling, there are huge regional differences. Sub-Saharan Africa remains the epicenter of the epidemic.