|WHO IS MOST AT RISK?
Tuberculosis mostly affects adults in their most productive years. However, all age groups are at risk. Over 95% of cases and deaths are in developing countries. The risk of active TB is also greater in persons suffering from other conditions that impair the immune system.
GLOBAL IMPACT OF TB
TB occurs in every part of the world. In 2017, the largest number of new TB cases occurred in the South-East Asia and Western Pacific regions, with 62% of new cases, followed by the African region, with 25% of new cases.
In 2017, 87% of new TB cases occurred in the 30 high TB burden countries. Eight countries accounted for two thirds of the new TB cases: India, China, , the Philippines, Pakistan, Nigeria, Bangladesh and South Africa.