The WHO declared TB a global emergency in 1993 in recognition of its growing importance as a public health problem worldwide and a major cause of morbidity and mortality in many countries.

• About one-third of the world’s population is latently infected with Mycobacterium tuberculosis, the bacteria that cause TB.
• Worldwide in 2013, there were an estimated 9 million new cases of TB disease with 1.5 million deaths of which 360,000 were estimated to be among people with HIV.
• WHO publishes an annual report on global tuberculosis control that details the latest surveillance and survey data by country.