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Lung Disease & Respiratory Health Center

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Who Is Affected by Tuberculosis (TB)

The World Health Organization (WHO) estimates that one-third of the world's population is infected with the bacteria that cause tuberculosis. About 2 million people die from TB each year.1

  • Almost 9 million new active TB cases occurred in 2011.2
  • More than 80% of the people with TB live in 22 countries, most of them in Africa and Asia.2
  • In the United States 11,162 people had active TB in 2010.3


  1. Nachega JB, Chaisson RE (2003). Tuberculosis drug resistance: A global threat. Clinical Infectious Disease, 36(Suppl 1): S24-S30.

  2. World Health Organization (2012). Global Tuberculosis Report 2012. Geneva, Switzerland: WHO Press. Available online:

  3. Centers for Disease Control and Prevention (2012). Trends in tuberculosis-United States, 2011. MMWR, 61(11): 181-185. Also available online: [Erratum in MMWR, 61(18): 329. Also available online:]

ByHealthwise Staff
Primary Medical ReviewerE. Gregory Thompson, MD - Internal Medicine
Specialist Medical ReviewerR. Steven Tharratt, MD, MPVM, FACP, FCCP - Pulmonology, Critical Care Medicine, Medical Toxicology

Current as ofNovember 14, 2014

WebMD Medical Reference from Healthwise

Last Updated: November 14, 2014
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.

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