How does it explain ? Experts credit the good news in the report at least in part to prevention programs, not just the natural progress of the epidemic. Yet the report points out that while the AIDS epidemic is changing, prevention programs are not. Hi Cherry, may be u do not seen the Context. this is the text above the question: Experts say new H.I.V. infections have fallen by seventeen percent since two thousand one. Estimates for sub-Saharan Africa are down by about fifteen percent. In East Asia new infections with the virus that causes AIDS have decreased almost twenty-five percent. I judge the the infections have fallen that the prevention programs is not slack off ?