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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 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 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 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...

Other Pulmonary Disorders

Other Pulmonary Disorders

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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Related Experiment Video

Updated: May 13, 2026

Analysis of 18FDG PET/CT Imaging as a Tool for Studying Mycobacterium tuberculosis Infection and Treatment in Non-human Primates

Analysis of ¹⁸FDG PET/CT Imaging as a Tool for Studying Mycobacterium tuberculosis Infection and Treatment in Non-human Primates

Published on: September 5, 2017

Risk factors for tuberculosis.

Padmanesan Narasimhan¹, James Wood, Chandini Raina Macintyre

¹School of Public Health and Community Medicine, The University of New South Wales, Kensington, Sydney, NSW 2052, Australia.

Pulmonary Medicine

|March 12, 2013

Summary

This summary is machine-generated.

Tuberculosis (TB) progression from exposure to active disease involves exogenous and endogenous risk factors. Emerging variables like diabetes and indoor air pollution, alongside traditional factors, significantly influence TB risk and transmission.

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An Automated Culture System for Use in Preclinical Testing of Host-Directed Therapies for Tuberculosis

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Last Updated: May 13, 2026

Analysis of 18FDG PET/CT Imaging as a Tool for Studying Mycobacterium tuberculosis Infection and Treatment in Non-human Primates

Analysis of ¹⁸FDG PET/CT Imaging as a Tool for Studying Mycobacterium tuberculosis Infection and Treatment in Non-human Primates

Published on: September 5, 2017

An Automated Culture System for Use in Preclinical Testing of Host-Directed Therapies for Tuberculosis

An Automated Culture System for Use in Preclinical Testing of Host-Directed Therapies for Tuberculosis

Published on: August 16, 2021

Area of Science:

Infectious Diseases
Public Health
Epidemiology

Background:

Tuberculosis (TB) progression is a complex, two-stage process.
Both external (exogenous) and internal (endogenous) factors influence TB development.
Understanding these factors is crucial for effective TB control.

Purpose of the Study:

To summarize exogenous and endogenous risk factors for TB progression.
To highlight emerging risk variables impacting TB at individual and population levels.
To discuss health system factors, including diagnostic delays, in TB transmission.

Main Methods:

Literature review and synthesis of existing research on TB risk factors.
Categorization of factors into exogenous, endogenous, and health system-related.
Analysis of individual, socioeconomic, behavioral, and population-level influences.

Main Results:

Exogenous factors like bacillary load and proximity to infectious cases drive exposure-to-infection progression.
Endogenous factors, including HIV, malnutrition, diabetes, and lifestyle choices, drive infection-to-disease progression.
Health system delays in diagnosis significantly contribute to TB transmission.

Conclusions:

TB risk is multifactorial, influenced by a combination of established and emerging factors.
Targeted interventions addressing both individual vulnerabilities and population-level risks are essential.
Improving diagnostic timeliness is critical to curb TB transmission and disease spread.