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Related Concept Videos

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

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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 V01:28

Pulmonary Tuberculosis V

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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 II01:28

Pulmonary Tuberculosis II

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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

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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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Mechanism of Antibiotic Resistance in MRSA01:25

Mechanism of Antibiotic Resistance in MRSA

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Antibiotic resistance in bacteria arises when microorganisms evolve the ability to withstand drugs designed to kill them or inhibit their growth, rendering once-effective treatments useless. This phenomenon, driven by genetic change and selection under antibiotic exposure, poses a profound threat to modern medicine. Mechanisms include drug-inactivating enzymes (e.g., β-lactamases), efflux pumps that eject antibiotics, mutations altering antibiotic targets, decreased drug uptake, and...
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Related Experiment Video

Updated: Apr 23, 2026

Demonstrating a Multi-drug Resistant Mycobacterium tuberculosis Amplification Microarray
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[MDR tuberculosis].

Hanna Soini, Tuula Vasankari

    Duodecim; Laaketieteellinen Aikakauskirja
    |October 2, 2014
    PubMed
    Summary

    Multidrug-resistant tuberculosis (MDR TB) is a serious global health threat, requiring longer, more expensive treatments with less effective drugs. MDR TB affects hundreds of thousands annually, particularly in South Africa, India, and Russia.

    Area of Science:

    • Infectious Diseases
    • Microbiology
    • Public Health

    Context:

    • Multidrug-resistant tuberculosis (MDR TB) is defined by resistance to isoniazid and rifampin.
    • Extensively drug-resistant tuberculosis (XDR TB) additionally involves resistance to fluoroquinolones and aminoglycosides.
    • In 2012, MDR TB affected 450,000 individuals globally, resulting in 170,000 deaths.

    Purpose:

    • To highlight the global prevalence and characteristics of MDR and XDR tuberculosis.
    • To underscore the challenges associated with treating drug-resistant tuberculosis strains.

    Summary:

    • MDR TB strains are resistant to key first-line anti-tuberculosis drugs.
    • High MDR TB incidence is noted in specific regions like Northwest Russia.
    • Finland reports a low incidence of MDR TB and a single XDR TB case.

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    The MODS method for diagnosis of tuberculosis and multidrug resistant tuberculosis
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    Impact:

    • Treatment for MDR TB is prolonged, costly, and utilizes less effective second-line drugs with more adverse effects.
    • The findings emphasize the urgent need for improved MDR TB diagnostics and therapeutics.
    • Understanding regional variations in MDR TB is crucial for targeted public health interventions.