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Related Concept Videos

Pulmonary Tuberculosis IV01:26

Pulmonary Tuberculosis IV

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...
Pulmonary Tuberculosis V01:28

Pulmonary Tuberculosis V

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 progression...
Pulmonary Tuberculosis II01:28

Pulmonary Tuberculosis II

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...
Pulmonary Tuberculosis III01:31

Pulmonary Tuberculosis III

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:
Tuberculosis01:23

Tuberculosis

Tuberculosis (TB) remains a significant global health concern, primarily targeting the lungs and spreading through airborne transmission. Infection begins when aerosolized droplet nuclei, expelled by an individual with active TB, are inhaled by another person. These microscopic particles carry Mycobacterium tuberculosis, the causative agent of TB. Upon reaching the alveoli, the bacilli are engulfed by alveolar macrophages. However, due to their specialized lipid-rich cell wall, these pathogens...
Pulmonary Tuberculosis I01:29

Pulmonary Tuberculosis I

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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Related Experiment Video

Updated: Jun 6, 2026

Synthesis, Characterization, and Application of Superparamagnetic Iron Oxide Nanoprobes for Extrapulmonary Tuberculosis Detection
09:54

Synthesis, Characterization, and Application of Superparamagnetic Iron Oxide Nanoprobes for Extrapulmonary Tuberculosis Detection

Published on: February 16, 2020

Recent advances in testing for latent TB.

Neil W Schluger1, Joseph Burzynski

  • 1Division of Pulmonary, Allergy, and Critical Care Medicine, Columbia University Medical Center, New York, NY 10032, USA. ns311@columbia.edu

Chest
|December 9, 2010
PubMed
Summary

Interferon gamma release assays (IGRAs) offer a more sensitive and specific blood test for latent tuberculosis infection than traditional skin tests. This review explores their use in TB control programs and specific populations.

Area of Science:

  • Infectious Diseases
  • Immunology
  • Public Health

Background:

  • Latent tuberculosis infection (LTBI) diagnosis historically relied on skin testing.
  • Interferon gamma release assays (IGRAs) are newer blood-based diagnostics for LTBI.
  • IGRAs generally demonstrate improved sensitivity and specificity compared to skin tests.

Purpose of the Study:

  • To review the indications for LTBI testing and treatment within TB control programs.
  • To describe the application of IGRAs in specific clinical settings and populations.
  • To highlight the advantages of IGRAs over traditional methods.

Main Methods:

  • Literature review of studies on LTBI diagnostics.
  • Analysis of IGRA performance data.
  • Discussion of clinical guidelines and TB control strategies.

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The MODS method for diagnosis of tuberculosis and multidrug resistant tuberculosis

Published on: August 11, 2008

Related Experiment Videos

Last Updated: Jun 6, 2026

Synthesis, Characterization, and Application of Superparamagnetic Iron Oxide Nanoprobes for Extrapulmonary Tuberculosis Detection
09:54

Synthesis, Characterization, and Application of Superparamagnetic Iron Oxide Nanoprobes for Extrapulmonary Tuberculosis Detection

Published on: February 16, 2020

Amplicon Sequencing using the Long-Read Sequencing Technologies
08:57

Amplicon Sequencing using the Long-Read Sequencing Technologies

Published on: August 29, 2025

The MODS method for diagnosis of tuberculosis and multidrug resistant tuberculosis
23:06

The MODS method for diagnosis of tuberculosis and multidrug resistant tuberculosis

Published on: August 11, 2008

Main Results:

  • IGRAs offer higher diagnostic accuracy for LTBI.
  • The article outlines specific scenarios for IGRA implementation.
  • Guidance is provided for using IGRAs in high-risk groups.

Conclusions:

  • IGRAs represent a significant advancement in LTBI diagnosis.
  • Effective use of IGRAs can enhance TB control efforts.
  • The review provides a framework for integrating IGRAs into clinical practice and public health initiatives.