It can develop when bacteria spread through droplets in the air. Mdrtb is defined as resistance to the two most effective firstline tb drugs. Pdf tuberculosis tb remains one of the deadliest infectious diseases responsible for millions of. Mycobacterium tuberculosis complex in most of the definitions presented here. Tuberculosis definition is a highly variable communicable disease of humans and some other vertebrates that is caused by the tubercle bacillus and rarely in the u. When these bacteria enter the lungs, they are usually walled off into harmless capsules granulomas in the lung, causing infection. The definition of whoapproved rapid diagnostics was extended to include biomarkerbased techniques.
Definitions and reporting framework for tuberculosis world health. Tb bacteria is used in place of mycobacterium tuberculosis and. Tuberculosis tb is an infectious disease usually caused by mycobacterium tuberculosis. Pdf tuberculosis tb remains one of the deadliest infectious diseases responsible for millions of deaths annually across the world. Tb is spread by tiny airborne droplets created by coughing. A surveillance case definition is a set of uniform criteria used to define a disease for public health surveillance. Tuberculosis tb is an infectious disease usually caused by mycobacterium tuberculosis mtb bacteria. Tuberculosis tb is a bacterial disease that spreads through. Covering the mouth and nose when coughing is an important way to stop the spread of tb and other airborne diseases. Tb usually affects the lungs, but it can also affect other parts of the body, such as the brain, the kidneys, or the spine. Several important recommendations are being promoted in this new edition. Tuberculosis tb is a potentially fatal contagious disease that can affect almost any part of the body but is mainly an infection of the lungs. The bacteria that cause tuberculosis are spread from.
This means that a person with hiv has a higher risk of developing tb and. Transmission occurs when a person inhales droplet nuclei containing. It is not spread by sharing food, utensils, drinks, touching, or having sex. Tuberculosis definition tuberculosis tb is a potentially fatal contagious disease that can affect almost any part of the body but is mainly an infection of the lungs. Tuberculosis generally affects the lungs, but can also affect other parts of the body. Tb is an airborne disease caused by the bacterium mycobacterium tuberculosis m. Most infections show no symptoms, in which case it is known as latent tuberculosis. Who definitions and reporting framework for tuberculosis. A positive result indicates that a person has been infected with the tuberculosis bacteria at some point in his or her life. This means that specific laboratory methods are required to identify tb bacteria in smear examinations acidfast staining and in culture mycobacterial culture. Tuberculosis definition, an infectious disease that may affect almost any tissue of the body, especially the lungs, caused by the organism mycobacterium tuberculosis, and. Chapter 2 transmission and pathogenesis of tuberculosis cdc. Tuberculosis tb is a disease caused by germs that are spread from person to person through.
Tuberculosis definition of tuberculosis by merriamwebster. Chapter 2 transmission and pathogenesis of tuberculosis. Definitions and reporting framework for tb 20 revision. Tuberculosis tb mycobacterium tuberculosis 2009 case definition recommend on facebook tweet share compartir note. Tuberculosis tb is a potentially serious infectious disease that mainly affects your lungs. Tb is a serious disease that usually affects the lungs but can also affect other parts. Archived from the original pdf on 6 september 2012. Tuberculosis definition of tuberculosis by medical. First, the recommendation to discontinue the regimen based on just 2 months of rifampicin 2hrze6he and change to the regimen based on a full 6 months of. Tb disease is suspected clinically when a person presents with the symptoms mentioned above usually together with abnormal findings on a chest xray.
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