1995 - The World Health Organization launches Directly Observed Therapy Short-Course (DOTS). The program requires doctors to ensure TB patients take their medications while also monitoring their treatment.
Early 2000s - The number of reported tuberculosis cases drops in Africa due to programs launched by the World Health Organization.
May 2007 - American Andrew Speaker causes an international health scare after coming into contact with various passengers on international flights. Doctors later confirm Speaker's test results for a drug-resistant form of tuberculosis (XDR-TB) are negative.
2008 - The World Health Organization reports the highest rates of multidrug resistant TB (MDR-TB) worldwide. This type of TB develops after patients fail to complete their treatment and the most powerful antibiotics are not effective.
2009 - Foreign-born persons reported higher rates of TB cases compared to those born in the United States.
December 8, 2010 - The World Health Organization endorses a new test that diagnoses tuberculosis in 100 minutes instead of three months.
May 26, 2011 - Nearly 700 patients and 100 employees are exposed to tuberculosis at Emory University Hospital in Atlanta after interacting with a hospital employee carrying the disease.