tuberculosis (tb) is caused by mycobacterium tuberculosis slow-growing bacteria that thrive in areas of the body that are rich in blood and oxygen such as the lungs. webmd medical reference from healthwise this information is not intended to replace the advice of a doctor. healthwise disclaims any liability for the decisions you make based on this information. © 1995-2011 healthwise incorporated. healthwise healthwise for every health decision and the healthwise logo are trademarks of healthwise incorporated.
what causes tuberculosis tb?