In the entire history of humankind, it is believed that tuberculosis has killed more people than any other disease (in shorter periods of time, the epidemics of the Black Death and AIDS have killed more). Tuberculosis dates back to at least 4000 BC and was present in ancient Egypt, Greece, Rome, and India. Known as consumption, it was responsible for one in five deaths in 17th century London.
Tuberculosis is highly contagious and spreads through the air from coughing. If not treated, a person with TB infects an average of 10 to 15 new people each year. Once thought to be under control, tuberculosis still kills well over 1.5 million people each year, a figure that is now increasing slightly each year.
In 1995 the World Health Organization launched a multi-pronged tuberculosis program called DOTS (Directly Observed Therapy). Since then it has successfully treated more than 22 million tuberculosis patients. Funding is needed so that this effective program can expand to reach all the people who need it.
Sources: World Health Organization (WHO), Stop TB Partnership.
Note: The map display above is representational only and does not show the names and faces of real people. The photographs are computer composites of multiple individuals.