Related Experiment Video
Updated: Apr 17, 2026
23:06
The MODS method for diagnosis of tuberculosis and multidrug resistant tuberculosis
Published on: August 11, 2008
19.8K
Multidrug-resistant tuberculosis in Europe, 2010-2011
Emerging Infectious Diseases
|February 20, 2015
Summary
Multidrug-resistant tuberculosis (MDR TB) poses a significant challenge. High rates of primary transmission and resistance to second-line drugs, particularly in previously untreated patients, characterize MDR TB in Europe.
Area of Science:
- Infectious Diseases
- Microbiology
- Public Health
Background:
- Tuberculosis (TB) elimination is hindered by drug-resistant Mycobacterium tuberculosis.
- Multidrug-resistant TB (MDR TB) requires evaluation of risk factors and resistance patterns.
Observation:
- A study in Europe (2010-2011) analyzed 380 MDR TB and 376 non-MDR TB patients across 23 centers in 16 countries.
- Over half of MDR TB patients had no prior TB treatment, indicating primary transmission.
- Previous TB treatment emerged as the primary risk factor for MDR TB.
Findings:
- At MDR TB treatment initiation, 59.7% of strains were pyrazinamide-resistant.
- 51.1% of strains showed resistance to at least one second-line drug.
- Resistance to second-line injectables (26.6%), fluoroquinolones (17.6%), and extensive drug resistance (6.8%) were observed.
Implications:
- High primary transmission rates of MDR M. tuberculosis necessitate enhanced public health interventions.
- Advanced second-line drug resistance in MDR TB cases complicates treatment strategies.
- Understanding risk factors and resistance profiles is crucial for effective MDR TB control in Europe.
Related Concept Videos
01:28Pulmonary Tuberculosis V
927
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...
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...
927
01:25Mechanism of Antibiotic Resistance in MRSA
155
Antibiotic resistance in bacteria arises when microorganisms evolve the ability to withstand drugs designed to kill them or inhibit their growth, rendering once-effective treatments useless. This phenomenon, driven by genetic change and selection under antibiotic exposure, poses a profound threat to modern medicine. Mechanisms include drug-inactivating enzymes (e.g., β-lactamases), efflux pumps that eject antibiotics, mutations altering antibiotic targets, decreased drug uptake, and...
155
01:29Pulmonary Tuberculosis I
1.5K
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...
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...
1.5K
01:26Pulmonary Tuberculosis IV
752
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...
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...
752
01:25Clinical Significance of Antibiotic Resistance
60
Methicillin-resistant Staphylococcus aureus (MRSA) presents a critical public health threat, arising from its capacity to resist β-lactam antibiotics due to acquisition of the mecA gene within the staphylococcal cassette chromosome mec (SCCmec). This gene encodes penicillin-binding protein 2a (PBP2a), which impairs binding efficacy of methicillin and other β-lactams. MRSA has evolved into distinct clonal lineages impacting humans and animals alike, reinforcing its significance within...
60
01:28Pulmonary Tuberculosis II
2.4K
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...
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...
2.4K