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Related Concept Videos

Pulmonary Tuberculosis V01:28

Pulmonary Tuberculosis V

480
Medical management of tuberculosis (TB) patients involves a comprehensive approach that includes diagnosis, treatment, and monitoring. The specific strategies can vary depending on the type of tuberculosis (latent or active), the patient's overall health status, and other considerations.
Latent tuberculosis infection occurs when TB bacteria are present in a person's body, but are not causing illness or symptoms. It is not contagious, and preventive treatment is crucial to avoid the...
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Pulmonary Tuberculosis I01:29

Pulmonary Tuberculosis I

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Tuberculosis, often called TB, is a contagious illness primarily caused by Mycobacterium tuberculosis. It mainly affects the lung parenchyma but can also impact other body parts.
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
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Pulmonary Tuberculosis IV01:26

Pulmonary Tuberculosis IV

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Tuberculosis, more commonly referred to as TB, is an infectious disease stemming from Mycobacterium tuberculosis. While it primarily impacts the lungs, TB can also affect other body areas. Given its severity and global impact, timely and accurate diagnosis is crucial for controlling its spread and improving patient outcomes.
Several diagnostic approaches are used to detect TB. The conventional method is the Tuberculin Skin Test (TST), also known as the Mantoux test. However, this method has...
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Pulmonary Tuberculosis II01:28

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Tuberculosis, or TB, is a bacterial infectious disease caused by Mycobacterium tuberculosis. While its primary impact is on the lungs, leading to pulmonary tuberculosis, it can also affect various other organs, a condition referred to as extrapulmonary tuberculosis.
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...
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Pulmonary Tuberculosis III01:31

Pulmonary Tuberculosis III

817
Tuberculosis (TB) is a contagious infection primarily affecting the lung parenchyma but which can also affect other body parts. TB can be classified based on disease development, presentation, and the affected anatomical site.
The first classification is based on the development of the disease, and it includes the following categories:
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Other Pulmonary Disorders01:17

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Respiratory disorders encompass a range of conditions with varying levels of severity. Asthma, marked by chronic airway inflammation and hypersensitivity, is one such condition. It can lead to airway obstruction due to factors like bronchial spasms, mucosal edema, increased mucus secretion, or epithelial damage. Asthma triggers are diverse, ranging from allergens to emotional upset, and treatment focuses on both immediate relief through bronchodilators and long-term inflammation suppression.
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    The United States achieved its lowest tuberculosis (TB) case count in 2019, but progress in reducing TB incidence has slowed. New strategies are needed to identify and treat latent TB infection (LTBI) to accelerate elimination efforts.

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    Area of Science:

    • Public Health
    • Epidemiology
    • Infectious Disease Control

    Background:

    • The U.S. has aimed to eliminate tuberculosis (TB) since 1989 through case identification and contact tracing.
    • While effective, the strategy's pace of TB incidence decline has slowed significantly in recent years.
    • Latent TB infection (LTBI), often acquired abroad, accounts for approximately 80% of U.S. TB cases.

    Purpose of the Study:

    • To analyze provisional 2019 data on TB incidence in the U.S. and compare it with previous years.
    • To identify trends in TB incidence among different subpopulations.
    • To inform future TB elimination strategies.

    Main Methods:

    • Analysis of provisional 2019 data from the National Tuberculosis Surveillance System (NTSS).
    • Calculation of TB incidence rates overall and for selected subpopulations.
    • Comparison of 2019 data with historical TB surveillance data.

    Main Results:

    • Provisional 2019 data reported 8,920 new TB cases, a 1.1% decrease from 2018.
    • Overall TB incidence decreased to 2.7 cases per 100,000 persons, a 1.6% decline from 2018.
    • Non-U.S.-born individuals had a TB rate 15.5 times higher than U.S.-born individuals.

    Conclusions:

    • The U.S. reached its lowest reported TB case count and rate in 2019, but the decline rate remains slow.
    • Addressing latent TB infection (LTBI) is crucial for accelerating TB elimination.
    • Expanding TB elimination strategies requires leveraging primary care and partnerships with healthcare providers to treat LTBI and limit transmission.