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Pulmonary Tuberculosis I

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...

Pulmonary Tuberculosis II

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 III

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:

Pulmonary Tuberculosis IV

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 V

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...

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Related Experiment Video

Updated: Jul 19, 2026

The MODS method for diagnosis of tuberculosis and multidrug resistant tuberculosis

The MODS method for diagnosis of tuberculosis and multidrug resistant tuberculosis

Published on: August 11, 2008

Detection of active tuberculosis by an MPB-64 transdermal patch: a field study.

R M Nakamura¹, L Einck, M A Velmonte

¹Sequella Inc., Rockville, Maryland 20850, USA.

Scandinavian Journal of Infectious Diseases

|July 14, 2001

Summary

A new transdermal patch using the MPB-64 antigen shows promise for diagnosing active tuberculosis (TB). This diagnostic tool may also help monitor the effectiveness of TB chemotherapy.

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Last Updated: Jul 19, 2026

The MODS method for diagnosis of tuberculosis and multidrug resistant tuberculosis

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

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A Tuberculosis Molecular Bacterial Load Assay (TB-MBLA)

A Tuberculosis Molecular Bacterial Load Assay (TB-MBLA)

Published on: April 30, 2020

Area of Science:

Immunology
Infectious Diseases
Dermatology

Background:

Tuberculosis (TB) diagnosis remains a challenge, especially in resource-limited settings.
Current diagnostic methods may lack specificity or require specialized equipment.
There is a need for accessible and reliable diagnostic tools for active TB.

Purpose of the Study:

To evaluate the efficacy of a novel MPB-64 Transdermal Patch for diagnosing active tuberculosis (TB).
To assess the patch's ability to differentiate active TB from latent infection or post-chemotherapy states.
To explore the potential of the MPB-64 patch as a tool for monitoring TB treatment success.

Main Methods:

The MPB-64 Transdermal Patch was applied to patients with active TB, individuals who completed TB chemotherapy, and non-TB controls.
Diagnostic results were assessed at 72 hours post-application.
Sensitivity, specificity, and efficacy were calculated to evaluate the patch's performance.

Main Results:

The MPB-64 Transdermal Patch demonstrated high sensitivity (87.8%) and specificity (100%) in detecting active TB.
The test showed potential in distinguishing active TB patients from those who had completed chemotherapy, with reactivity decreasing over time post-treatment.
Non-TB controls with positive tuberculin tests did not react to the MPB-64 patch, indicating high specificity.

Conclusions:

The MPB-64 Transdermal Patch is a potentially valuable tool for diagnosing active tuberculosis.
This diagnostic method may help differentiate active TB from TB infection without active disease.
The patch could serve as a useful indicator for monitoring the success of tuberculosis chemotherapy.