The [him] blogsite chatbox has the following three entries. And the article referred to is below … There are three possible reasons for the rate of people living with HIV (prevalence) to fall: fewer people infected five to ten years ago, deaths, or different methods of measuring the prevalence. There are two reasons for the estimated total number of people living with HIV to fall: lower prevalence or different methods of estimating the total number. And we have to remember that successful antiretroviral therapy increases both prevalence and the estimated total number of people living with HIV. … The Chinese news agency is probably not interested in these distinctions.