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Related Concept Videos

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 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:
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 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 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...
Development of Antibiotic Resistance01:30

Development of Antibiotic Resistance

Antibiotic resistance is a major public health concern that arises when bacteria evolve mechanisms to withstand the effects of antibiotic treatments. This resistance can be intrinsic, acquired through genetic mutations, or transferred between bacteria via horizontal gene transfer. The development of antibiotic resistance poses significant challenges in treating bacterial infections and necessitates ongoing research to develop new therapeutic strategies.Intrinsic resistance occurs when bacterial...

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Related Experiment Video

Updated: May 29, 2026

Demonstrating a Multi-drug Resistant Mycobacterium tuberculosis Amplification Microarray
07:35

Demonstrating a Multi-drug Resistant Mycobacterium tuberculosis Amplification Microarray

Published on: April 25, 2014

Resistance pattern in drug-resistant pulmonary tuberculosis.

C Nagaraja1, B L Shashibhushan, C Sagar

  • 1Department of Pulmonary Medicine, Rajiv Gandhi Institute of Chest Diseases, BMCRI, Bangalore, Karnataka, India. rgicdtrials@gmail.com

Journal of Postgraduate Medicine
|September 24, 2011
PubMed
Summary

Drug-resistant tuberculosis, particularly multidrug resistance (MDR), is a growing global health concern. This study found MDR tuberculosis in 72% of cases, highlighting the need for vigilant monitoring and tailored treatment strategies.

Related Experiment Videos

Last Updated: May 29, 2026

Demonstrating a Multi-drug Resistant Mycobacterium tuberculosis Amplification Microarray
07:35

Demonstrating a Multi-drug Resistant Mycobacterium tuberculosis Amplification Microarray

Published on: April 25, 2014

Area of Science:

  • Infectious Diseases
  • Microbiology
  • Public Health

Background:

  • Drug-resistant tuberculosis (TB) presents a significant global public health challenge.
  • India is identified as a high-burden country experiencing a rise in multidrug-resistant (MDR) TB.
  • This study addresses the increasing prevalence of drug-resistant TB and the need for effective treatment strategies.

Purpose of the Study:

  • To analyze resistance patterns in pulmonary tuberculosis patients with confirmed drug resistance.
  • To guide the initiation of appropriate second-line anti-TB drug regimens.
  • To contribute to better patient management in a specialized treatment setting.

Main Methods:

  • An observational prospective study was conducted.
  • Data from 309 drug-resistant TB cases were collected between January 2005 and November 2010.
  • Drug sensitivity testing for first-line drugs (excluding pyrazinamide) was performed using Lowenstein-Jensen media.

Main Results:

  • Multidrug resistance (MDR) was observed in 72% (224/309) of the cases.
  • Specific MDR patterns included resistance to isoniazid (INH) and rifampicin (RMP) alone (6.47%), INH, RMP, and other first-line drugs (18.7%), and all first-line drugs (47.25%).
  • Poly-drug resistance was found in 23.3% and mono-drug resistance in 4.2% of patients.

Conclusions:

  • The predominant resistance pattern observed was MDR, with a high prevalence of resistance to isoniazid.
  • There is a clear increasing trend in drug-resistant TB, especially MDR-TB.
  • Close monitoring of drug resistance patterns and laboratory-guided regimen design are crucial for effective MDR-TB treatment and patient outcomes.