Skip to content

Bookmark and Share

Tuberculosis, or TB, is an infectious bacterial disease caused by Mycobacterium tuberculosis, which most commonly affects the lungs. It is transmitted from person to person via droplets from the throat and lungs of people with the active respiratory disease. In healthy people, infection with M. tuberculosis often causes no symptoms, since the person's immune system acts to 'wall off' the bacteria. The symptoms of active TB of the lung are coughing, sometimes with sputum or blood, chest pains, weakness, weight loss, fever and night sweats. Tuberculosis is treatable with a six-month course of antibiotics.

Una de cada cinco personas con tuberculosis no sabe que tiene la enfermedad en las Américas

En 2012 se notificaron 220 mil casos, pero se estima que además 60 mil personas no han sido diagnosticadas, la mayoría de las cuales vive en ciudades. Diagnóstico y el tratamiento para todos es el lema del Día Mundial de la Tuberculosis de este año.

Lire la suite

:: Scientific and Technical Materials

Meeting Reports

:: Advocacy Materials

:: Tuberculosis Video List


Communicable Diseases and Health Analysis Department
HIV, Hepatitis, Tuberculosis and Sexually Transmitted Infections
Tuberculosis Program

Regional Office for the Americas of the World Health Organization
525 Twenty-third Street, N.W., Washington, D.C. 20037, United States of America
Tel.: +1 (202) 974-3000 Fax: +1 (202) 974-3663

© Pan American Health Organization. All rights reserved.