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Related Concept Videos

Pulmonary Tuberculosis I01:29

Pulmonary Tuberculosis I

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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...
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Pulmonary Tuberculosis II01:28

Pulmonary Tuberculosis II

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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...
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Pulmonary Tuberculosis V01:28

Pulmonary Tuberculosis V

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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...
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Pulmonary Tuberculosis III01:31

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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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Pulmonary Tuberculosis IV01:26

Pulmonary Tuberculosis IV

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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.
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Plant Breeding and Biotechnology01:59

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Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.
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Separation and Fractionation of Culture Filtrate Proteins (CFPs) from Mycobacterium tuberculosis
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Avian tuberculosis in a wild turkey.

Richard W Gerhold1, John R Fischer

  • 1Southeastern Cooperative Wildlife Disease Study, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA.

Avian Diseases
|April 21, 2005
PubMed
Summary

A wild turkey liver from Kansas showed Mycobacterium avium subspecies avium infection. This finding highlights potential mycobacterial disease in wild bird populations.

Area of Science:

  • Veterinary Pathology
  • Wildlife Disease Surveillance
  • Avian Medicine

Background:

  • Wild turkeys (Meleagris gallopavo) are important game birds and indicators of ecosystem health.
  • Monitoring diseases in wild populations is crucial for conservation and public health.
  • Mycobacterial infections can affect various animal species, including birds.

Observation:

  • Gross examination of a wild turkey liver revealed multiple grayish-white masses (0.5-3 cm) within the parenchyma.
  • These hepatic masses protruded from the liver's capsular surface.
  • Histopathology showed multifocal granulomas containing acid-fast bacilli within giant cells.

Findings:

  • Culture of liver tissue identified Mycobacterium avium subspecies avium as the causative agent.

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  • Low numbers of Staphylococcus intermedius were also cultured from the liver.
  • The presence of acid-fast bacilli confirmed a mycobacterial etiology.

    • Implications:

    • This case represents a significant hepatic lesion in a wild turkey, likely caused by Mycobacterium avium.
    • The findings contribute to understanding the spectrum of diseases affecting wild turkey populations.
    • Further surveillance may be warranted to assess the prevalence of mycobacterial infections in wild turkeys.