WHO report 2008 Global tuberculosis control 1.8 Progress towards
impact targets included in the Millennium Development Goals
1.8.1 Trends in incidence, prevalence and mortality With the 9.2
million new incident TB cases in 2006, there were an estimated
14.4 million prevalent cases (219/100 000) on average (Table
1.2). An estimated 1.7 million people (25/100 000) died from TB
in 2006, including those coinfected with HIV (231 000). The
sequence of annual estimates up to 2006 suggests (as in the data
up to 2005) that all three major indicators of impact –
incidence, prevalence and mortality per 100 000 population – are
falling globally. In our assessment, prevalence was already in
decline by 1990, mortality peaked before the year 2000 and
incidence began to fall in 2003 (Figure 1.20). TB prevalence
continued to fall globally between 1990 and 2006 because, in
Africa, the HIV epidemic caused a smaller increase in prevalence
than in incidence or mortality. The fall in the global incidence
rate reinforces data prese