Mycobacterium tuberculosis, the cause of TB.
Today is World TB Day, calling attention to the fight to eliminate tuberculosis around the world. WHO estimates that one-third of the global population is infected with TB bacteria, and 1.3 million people died from TB in 2010.
Yes. One-third of people in the world have TB, but most of those infections do not become active.
(via jtotheizzoe)

