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Related Experiment Video

Updated: May 12, 2026

Subtyping of Campylobacter jejuni ssp. doylei Isolates Using Mass Spectrometry-based PhyloProteomics (MSPP)
09:43

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Published on: October 30, 2016

Campylobacter enteritis in the United States. A multicenter study.

M J Blaser, J G Wells, R A Feldman

    Annals of Internal Medicine
    |March 1, 1983
    PubMed
    Summary

    This study found that Campylobacter jejuni, Salmonella, and Shigella are common causes of diarrhea. Early fecal cultures within 7 days of symptom onset improve pathogen detection rates.

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    Area of Science:

    • Clinical Microbiology
    • Infectious Diseases
    • Gastroenterology

    Background:

    • Bacterial enteric infections are a significant cause of diarrheal illness.
    • Campylobacter jejuni, Salmonella, and Shigella are common bacterial pathogens.
    • Understanding their prevalence and clinical presentation is crucial for diagnosis and treatment.

    Purpose of the Study:

    • To determine the prevalence of Campylobacter jejuni, Salmonella, and Shigella in diarrheal stool specimens.
    • To identify risk factors and clinical features associated with these infections.
    • To evaluate the optimal timing for fecal culture collection.

    Main Methods:

    • Analysis of 8097 fecal specimens from eight US hospitals over 15 months.
    • Isolation and identification of bacterial pathogens using standard microbiology techniques.
    • Correlation of pathogen isolation with stool characteristics, patient demographics, and clinical symptoms.

    Main Results:

    • Prevalence rates: Campylobacter jejuni (4.6%), Salmonella (2.3%), Shigella (1.0%).
    • Higher isolation rates observed in watery, bloody stools, or those with leukocytes.
    • Peak incidence varied by pathogen: C. jejuni (10-29 years), Salmonella (<10 years), Shigella (5-9 years).
    • Clinical features were similar, but C. jejuni infections showed more severe symptoms compared to controls.
    • Fecal cultures yielded best results within 7 days of symptom onset.

    Conclusions:

    • Campylobacter jejuni, Salmonella, and Shigella are prevalent causes of bacterial diarrhea.
    • Stool characteristics and patient age are associated with specific pathogen infections.
    • Early fecal culture collection is recommended for improved diagnostic yield.