[spotlight] Each year the global community commemorates World TB Day on 24 March. On this day, 140 years ago, Robert Koch discovered the bacillus that causes tuberculosis. Amazingly, the Bacillus Calmette Guerin (BCG) vaccine, still used routinely, was first injected into a human in 1921 - 101 years ago. TB is an old disease - it was discovered in Egyptian mummies dating back to 600 BC.
