How long can someone with tuberculosis live?

Written by Yuan Lin Yan

Infectious Disease

Updated on September 19, 2024

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Early detection and appropriate anti-tuberculosis treatment of tuberculosis can lead to a normal lifespan once cured. However, it is important to exercise regularly and enhance immunity, since tuberculosis may recur if the body's resistance decreases. With the increase of drug-resistant tuberculosis, treatment difficulties have intensified. If it is detected late or not treated properly and the lung damage progresses to an advanced stage, it can be life-threatening, with survival ranging from days to years. When tuberculosis involves massive hemoptysis, death can occur at any time due to suffocation or hemorrhagic shock, depending on the specific condition.

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Written by Wang Xiang Yu

Pulmonology

1min 4sec

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How is tuberculosis contracted?

Tuberculosis (TB) is an infectious disease and currently classified as a Class B infectious disease for management purposes. As an infectious disease, TB has a specific causative agent, the Mycobacterium tuberculosis complex, which includes four types: human, bovine, African, and rodent. Over 90% of human tuberculosis infections are caused by the human type of Mycobacterium tuberculosis, with the remainder caused by either bovine or African types. To contract tuberculosis, one must be exposed to an infectious source, primarily those with secondary tuberculosis. Tuberculosis patients can release the bacteria into the air through coughing, sneezing, laughing, or speaking loudly. Healthy individuals or the general population may then inhale these bacteria during breathing, leading to infection of the lungs and the development of tuberculosis.

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Written by Li Jiao Yan

Neonatology

1min 1sec

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Does the BCG vaccine prevent tuberculosis?

The BCG vaccine primarily prevents infection by the tuberculosis bacillus, so it can prevent pulmonary tuberculosis. The protective effect of the BCG vaccine is mainly achieved through inducing a cell-mediated immune response. After vaccination, a primary infection is formed, which is processed by macrophages that transmit the antigen information to immune-active cells, leading to the differentiation and proliferation of T cells and the formation of sensitized lymphocytes. When the body is re-infected with the tuberculosis bacillus, the macrophages and sensitized lymphocytes are activated, causing a specific immune response in the body, thereby resisting the infection by the tuberculosis bacillus. Therefore, the BCG vaccine mainly prevents pulmonary tuberculosis.

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Written by Wang Xiang Yu

Pulmonology

1min 5sec

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Tuberculosis is transmitted through the air.

The transmission of tuberculosis primarily depends on understanding its causative agent, which is the tubercle bacillus, also known simply as the tuberculosis bacillus. The main source of infection in tuberculosis is from patients who test positive for tuberculosis bacillus in their sputum. The respiratory tract is the principal route of transmission for tuberculosis patients. When patients who test positive for bacillus in their sputum cough, expel sputum, sneeze, or even speak loudly, they generate a large amount of droplets containing the tuberculosis bacillus. These bacteria can remain suspended in the air for a relatively long time. In poorly ventilated indoor environments, they may stay airborne for up to five hours. Healthy individuals can contract respiratory infections upon inhaling these bacteria. Furthermore, a very small portion of patients are infected through consuming milk or other dairy products from cows with tuberculosis.

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Written by Yuan Lin Yan

Infectious Disease

50sec

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How long can someone with tuberculosis live?

Early detection and appropriate anti-tuberculosis treatment of tuberculosis can lead to a normal lifespan once cured. However, it is important to exercise regularly and enhance immunity, since tuberculosis may recur if the body's resistance decreases. With the increase of drug-resistant tuberculosis, treatment difficulties have intensified. If it is detected late or not treated properly and the lung damage progresses to an advanced stage, it can be life-threatening, with survival ranging from days to years. When tuberculosis involves massive hemoptysis, death can occur at any time due to suffocation or hemorrhagic shock, depending on the specific condition.

home-news-image

Written by Yuan Lin Yan

Infectious Disease

1min 21sec

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Can tuberculosis be cured?

Tuberculosis can be cured if it is detected early and treated promptly with standard anti-tuberculosis therapy, resulting in a very good prognosis. However, it is very unfortunate if detection is delayed or if standard treatment is not administered, as the tuberculosis may recur or infect with drug-resistant strains, causing permanent damage to lung function. Advanced pulmonary lesions or significant hemoptysis can be life-threatening. Currently, the treatment of tuberculosis involves chemotherapy, with principles including early treatment, combination therapy, appropriate dosing, regularity, and completeness, usually lasting at least six months. Common first-line anti-tuberculosis medications include isoniazid, rifampin, ethambutol, and pyrazinamide. Initially, a two-month intensive phase of treatment with isoniazid, rifampin, ethambutol, and pyrazinamide is followed by a four-month continuation phase with isoniazid and rifampin. During the treatment of tuberculosis, it is important to enhance one's resistance and immune function and to improve nutrition to facilitate recovery. (Use medications under the guidance of a doctor.)