**2. Epidemiology**

According to the global report of TB 2018, it is estimated that about 10 million people developed the disease during 2017. Cases were reported in all countries and age groups, but the majority (90%) occurred in adults (>15 years old). Nearly 9% of infected people were HIV carriers (72% in Africa). Two thirds of the cases were reported in eight countries: India (27%), China (9%), Indonesia (8%), the Philippines (6%), Pakistan (5%), Nigeria (4%), Bangladesh (4%), and South Africa (3%). Only 6% of the cases were reported in the European region and 3% in the region of the Americas [1].
