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Related Experiment Videos

Pathogenic anaerobic bacteria and the environment.

J Haagsma1

  • 1Department of Bacteriology, Central Veterinary Institute, Lelystad, The Netherlands.

Revue Scientifique Et Technique (International Office of Epizootics)
|September 1, 1991
PubMed
Summary

Pathogenic anaerobic bacteria, including spore-bearing clostridia and Gram-negative non-spore-formers, are widespread in the environment and animal hosts. This review details their distribution, isolation, and the animal diseases they cause, including reservoirs and transmission routes.

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Area of Science:

  • Veterinary Microbiology
  • Environmental Microbiology
  • Pathogen Ecology

Background:

  • Pathogenic anaerobic bacteria are significant causes of disease in animals.
  • Understanding their environmental distribution and reservoirs is crucial for disease control.
  • A clear distinction exists between spore-bearing anaerobes (clostridia) and Gram-negative non-spore-forming anaerobes.

Purpose of the Study:

  • To discuss the environmental distribution of pathogenic anaerobes.
  • To explore the relationship between these anaerobes and animal diseases.
  • To detail the reservoirs and transmission routes of causative agents.

Main Methods:

  • Review of existing literature on anaerobic bacteria and associated animal diseases.
  • Classification of anaerobes into spore-bearing (clostridia) and Gram-negative non-spore-forming types.

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  • Discussion of isolation techniques for anaerobic bacteria.

    • Main Results:

    • Clostridia are primarily soil-dwelling but found in diverse environments (dust, water, food, intestinal tracts).
    • Gram-negative non-spore-forming anaerobes are prevalent in animal mucous membranes, especially the alimentary tract.
    • Specific diseases caused by clostridia (e.g., botulism, tetanus, gas gangrene) and Gram-negative anaerobes (e.g., footrot) are detailed, including their sources and spread.

    Conclusions:

    • Pathogenic anaerobes inhabit various environmental niches and animal hosts.
    • Knowledge of reservoirs and transmission is key to managing anaerobic bacterial infections in animals.
    • Effective disease management requires understanding the ecology of both clostridia and Gram-negative anaerobes.