Tuberculosis or TB is a disease known to mankind since our existence on Earth. In spite of that, our fight against this deadly disease still continues. A major breakthrough in this fight is the identification of Mycobacterium tuberculosis, the bacteria that causes TB, in the 19th century. World Tuberculosis Day is celebrated commemorating that significant day, when Robert Koch discovered this deadly bacteria that has now become stronger than ever, and standing tall against all odds in this fight. Will we ever succeed? Only time can tell.