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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 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...
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 18, 2026

Micro-Colony Forming Unit Assay for Efficacy Evaluation of Vaccines Against Tuberculosis
06:26

Micro-Colony Forming Unit Assay for Efficacy Evaluation of Vaccines Against Tuberculosis

Published on: July 28, 2023

New vaccines against tuberculosis.

Paul-Henri Lambert1, Tony Hawkridge, Willem A Hanekom

  • 1Centre of Vaccinology, CMU, 1 rue Michel-Servet, 1211 Geneva 4, Switzerland University of Geneva, Switzerland. paul.lambert@unige.ch

Clinics in Chest Medicine
|November 21, 2009
PubMed
Summary
This summary is machine-generated.

A new tuberculosis (TB) vaccine is urgently needed as the current one is ineffective and unsafe for some populations. Promising new TB vaccine candidates are advancing through clinical trials, focusing on safety and efficacy.

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Last Updated: Jun 18, 2026

Micro-Colony Forming Unit Assay for Efficacy Evaluation of Vaccines Against Tuberculosis
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Area of Science:

  • Vaccinology
  • Infectious Diseases
  • Public Health

Background:

  • The existing bacille Calmette Guérin (BCG) vaccine provides limited protection against tuberculosis (TB).
  • BCG is not safe for infants with human immunodeficiency virus (HIV), a critical concern in high-burden regions.
  • There is an urgent need for novel, safe, and more effective TB vaccine regimens, particularly for preventing lung disease.

Purpose of the Study:

  • To review the progress in the development of new tuberculosis vaccines.
  • To discuss key considerations for evaluating new TB vaccine candidates.

Main Methods:

  • Review of preclinical and clinical trial data for emerging TB vaccines.
  • Discussion of challenges and advancements in assessing vaccine safety, reactogenicity, immunogenicity, and efficacy.

Main Results:

  • Multiple novel TB vaccine candidates demonstrate promise in preclinical research.
  • Several candidates are progressing through early-phase clinical trials (Phase 1 to 2B).

Conclusions:

  • Significant advancements are being made in TB vaccine research and development.
  • Careful evaluation of safety, reactogenicity, immunogenicity, and efficacy is crucial for the successful introduction of new TB vaccines.