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Related Experiment Videos

Is cholera a problem for US travelers?

J D Synder, P A Blake

    JAMA
    |April 23, 1982
    PubMed
    Summary

    Cholera is rare in US travelers, with fewer than one case per 500,000 individuals. No specific risk factors were identified, and all reported cases recovered without secondary spread.

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    Area of Science:

    • Infectious Diseases
    • Epidemiology
    • Travel Medicine

    Background:

    • The current cholera pandemic began in 1961.
    • Cholera remains a significant public health concern globally.
    • Understanding transmission risks for travelers is crucial.

    Purpose of the Study:

    • To assess the incidence and risk factors of cholera among US travelers.
    • To quantify the risk of acquiring cholera for individuals traveling internationally.
    • To identify characteristics of US travelers who contracted cholera.

    Main Methods:

    • Retrospective analysis of reported cholera cases in US travelers.
    • Estimation of the at-risk population using data on international air travel.
    • Statistical calculation of cholera incidence per traveler.

    Main Results:

    • Only ten cases of cholera in US travelers were reported since 1961.
    • No significant risk factors (age, travel location, vaccination history) were identified.
    • The estimated risk was less than one case per 500,000 returning travelers.
    • Nine cases were caused by Vibrio cholerae 01 El Tor.

    Conclusions:

    • Cholera poses a very low risk to US travelers.
    • Current travel patterns and lack of identified risk factors suggest limited transmission.
    • All reported cases were successfully treated with no secondary infections, indicating effective management.

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