Global Health Observatory data https://www.who.int/gho/tb/en/ http://www.who.int/gho/tb/en/ Global Health Observatory Data on Tuberculosis the WHO found http://www.who.int/gho/tb/en/ according to the World Health Organization http://www.who.int/gho/tb/en/ http://www.who.int/gho/tb/en leading cause http://www.who.int/gho/tb/en/. 1.7 million