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Related Concept Videos

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 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...
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...
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 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:

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Related Experiment Video

Updated: Jun 12, 2026

Analysis of 18FDG PET/CT Imaging as a Tool for Studying Mycobacterium tuberculosis Infection and Treatment in Non-human Primates
10:04

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

The HIV-associated tuberculosis epidemic--when will we act?

Anthony D Harries1, Rony Zachariah, Elizabeth L Corbett

  • 1International Union Against Tuberculosis and Lung Disease, Paris, France. adharries@theunion.org

Lancet (London, England)
|May 22, 2010
PubMed
Summary

Aggressively diagnosing and treating HIV infection, alongside the 3Is policy and earlier antiretroviral treatment (ART), can significantly reduce tuberculosis incidence in HIV-positive individuals. This integrated approach is crucial for controlling the HIV-associated tuberculosis epidemic.

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Area of Science:

  • Public Health
  • Infectious Diseases
  • Epidemiology

Background:

  • The epidemic of HIV-associated tuberculosis remains a critical global health challenge, particularly in sub-Saharan Africa.
  • Prevention of tuberculosis in people living with HIV (PLWHIV) is a neglected area requiring urgent attention.

Purpose of the Study:

  • To advocate for a more aggressive strategy for early HIV diagnosis and treatment to curb tuberculosis incidence.
  • To emphasize the importance of integrating HIV care with tuberculosis control strategies.

Main Methods:

  • Proposing frequent HIV testing and early initiation of antiretroviral treatment (ART).
  • Recommending the implementation of the 3Is policy (intensified tuberculosis case finding, infection control, and isoniazid preventive therapy).
  • Highlighting the need for comprehensive HIV care packages, including co-trimoxazole prophylaxis and ART, for PLWHIV with tuberculosis.

Main Results:

  • Early HIV diagnosis and ART are expected to lead to individual immune reconstitution and reduced HIV transmission, thereby decreasing tuberculosis incidence.
  • Combining the 3Is policy with earlier ART initiation can lower the burden of tuberculosis in PLWHIV and create a safer environment for ART delivery.

Conclusions:

  • An integrated approach combining early HIV diagnosis and treatment, the 3Is policy, and comprehensive HIV care with directly observed therapy, short-course (DOTS) for tuberculosis is essential for prevention and control.
  • There is a need for both HIV and tuberculosis programs to implement proven strategies and explore innovative approaches to combat the HIV-associated tuberculosis epidemic.