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Pulmonary paragonimiasis in Cameroon

P N Kum, T C Nchinda

    Transactions of the Royal Society of Tropical Medicine and Hygiene
    |January 1, 1982
    PubMed
    Summary

    Paragonimiasis caused by Paragonimus africanus is endemic in Cameroon. A study found a 5% prevalence, with misdiagnosis as tuberculosis being common, but Niclofolan treatment was successful.

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    Area of Science:

    • Medical Parasitology
    • Infectious Diseases
    • Public Health

    Background:

    • Paragonimus africanus has been endemic in Cameroon's Bakossi area since 1952.
    • A 25-year gap in research necessitated updated prevalence and symptom data.
    • Understanding local beliefs and attitudes towards paragonimiasis was crucial.

    Purpose of the Study:

    • To determine the prevalence of Paragonimus africanus infection.
    • To document clinical symptoms and conduct paraclinical examinations.
    • To assess public perception and identify reasons for persistent endemicity.
    • To evaluate the efficacy of Niclofolan (Bilevon) treatment.

    Main Methods:

    • Exploratory study in the Bakossi area, Cameroon.
    • Prevalence assessment, symptom recording, and paraclinical examinations.
    • Surveys on local beliefs and attitudes.
    • Therapeutic trial using oral Niclofolan (Bilevon).

    Main Results:

    • Prevalence of paragonimiasis was 5%, higher in individuals under 20 and in boys.
    • The disease was often unrecognized and confused with tuberculosis.
    • Transmission occurred through consumption of undercooked crabs.
    • Niclofolan (Bilevon) demonstrated complete success in oral single-dose treatment.

    Conclusions:

    • Paragonimiasis should be considered in the differential diagnosis of tuberculosis in this region.
    • Effective treatment with Niclofolan is available.
    • A larger-scale study is needed to ascertain the true extent of paragonimiasis.

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