The number of people getting sick with tuberculosis has dropped for the first time, while the death toll from the disease reached its lowest level in a decade, helped by progress in countries like China, the World Health Organization said.
In 2010, 8.8 million people fell ill with TB and 1.4 million died, both marking a notable decline over prior years, the United Nations health agency said in releasing its 2011 Global Tuberculosis Control Report.
"The findings reflect a significant milestone for global health," said Dr. Mario Raviglione, director of the WHO's Stop TB Department, at a news briefing. "But history teaches that we cannot be complacent about TB. The international community therefore must not perceive these achievements as job done."
TB is a worldwide pandemic, with about a third of the world's population infected with the bacteria, although only a small portion ever develop the disease.
The WHO has revised its estimates to show that the absolute number of cases has been on a decline since 2006, not on a slight rise as previously reported. The number of people ill with TB peaked at 9 million in 2005.
The death toll from TB peaked at 1.8 million in 2003.
The WHO officials attributed the decline to better data collection around the world; increased funding in China for addressing TB; better prevention and care in the former countries of the Soviet Union and Latin America as their standard of living improves; and a drop-off of infection in Africa, which had peaked with the HIV epidemic.
The TB bacteria destroys patients' lung tissue, causing them to cough up the bacteria, which then spreads through the air and can be inhaled by others. If untreated, each person with active TB can infect on average 10 to 15 people a year.
TB is especially common in Latin America and the Caribbean, Africa, Asia, Eastern Europe and Russia.
The countries the WHO especially noted for progress in the fight against the disease were Kenya, the United Republic of Tanzania, Brazil and China, which saw a drop of nearly 80 percent to 55,000 TB deaths in 2010 since 1990.
Globally, the TB death rate dropped 40 percent in 2010 compared to 1990, and all regions except Africa were on track to reach a 50 percent mortality decline by 2015.