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The intestinal flora and infant botulism.

D J Hentges

    Reviews of Infectious Diseases
    |July 1, 1979
    PubMed
    Summary

    The gut microbiome, or intestinal flora, helps protect against Salmonella and Shigella infections by creating an acidic environment. This flora may also play a role in preventing clostridial colonization and infant botulism.

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    Area of Science:

    • Microbiology
    • Gastroenterology
    • Immunology

    Background:

    • The intestinal flora, or gut microbiome, plays a crucial role in host health.
    • Specific characteristics of the intestinal environment, such as volatile fatty acids, pH, and oxidation-reduction potential, are influenced by the flora.

    Purpose of the Study:

    • To investigate the influence of the intestinal flora on resistance to enteric pathogens.
    • To explore the relationship between the gut microbiome and colonization by clostridial species, including Clostridium botulinum.

    Main Methods:

    • The study likely involved experimental animal models to assess the impact of intestinal flora on pathogen colonization.
    • Analysis of intestinal contents for factors like volatile acids, pH, and oxidation-reduction potential.

    Main Results:

    • An intact intestinal flora was associated with protection against Salmonella and Shigella infections.
    • Protection correlated with high volatile acid concentrations, low pH, and low oxidation-reduction potential in the gut.
    • While direct evidence was lacking for clostridial species, indirect data suggested flora involvement in their colonization.

    Conclusions:

    • The intestinal flora is a significant factor in preventing infections by certain enteric bacteria like Salmonella and Shigella.
    • The gut microbiome's ecological impact on the large intestine is a key determinant of resistance to infant botulism.

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