This year's theme for World TB Day: 'The Clock is Ticking'World TB Day is observed each year on March 24 to raise public awareness about the devastating health, social and economic consequences of TB, and to step up efforts to end the global epidemic.'The Clock is Ticking', which is the theme of World TB Day 2021, conveys the sense that the world is running out of time to act on the commitments to end the deadly disease, made by global leaders.World Tuberculosis Day marks the date in 1882 when Dr Robert Koch announced that he had discovered the bacterium that caused TB.
This led to opening the way towards diagnosing and curing the disease. Still, TB remains one of the world's deadliest infectious killers.