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Related Experiment Videos

Nonbacterial gastroenteritis

R M Chanock

    Bulletin of the Pan American Health Organization
    |January 1, 1976
    PubMed
    Summary

    Researchers identified two distinct viruses causing infectious gastroenteritis. A 70-nm virus is a significant cause of infant diarrhea and can induce illness in animal models.

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    Area of Science:

    • Virology
    • Infectious Diseases
    • Gastroenterology

    Background:

    • Acute, infectious, nonbacterial gastroenteritis remains a significant public health concern.
    • Identifying causative agents is crucial for developing effective prevention and treatment strategies.

    Purpose of the Study:

    • To elucidate the viral agents responsible for acute, infectious, nonbacterial gastroenteritis.
    • To characterize the distinct viral types implicated in human gastroenteritis.

    Main Methods:

    • Characterization of viral particles based on size (27 nm and 70 nm).
    • Observation of disease association in human populations (epidemic gastroenteritis, infantile diarrhea).
    • Experimental induction of disease in animal models (piglets, calves, rhesus monkeys) using the 70-nm virus.

    Main Results:

    • Two distinct viral agents implicated: a 27-nm virus in acute epidemic gastroenteritis and a 70-nm virus in infantile diarrhea.
    • The 70-nm virus is a major contributor to nonbacterial diarrheal illness in infants globally.
    • The 70-nm virus successfully induced disease in newborn piglets, calves, and rhesus monkeys.
    • Antigenic relationship established between the human 70-nm virus and four other viruses, including three animal gastroenteritis viruses.

    Conclusions:

    • Significant progress has been made in identifying viral causes of nonbacterial gastroenteritis.
    • The 70-nm virus is a key pathogen in infantile diarrhea and shares antigenic properties with other animal viruses, suggesting potential zoonotic links.

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