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[Intestinal parasitism in eastern Gabon]

Y Garin, G Languillat, B Beauvais

    Bulletin De La Societe De Pathologie Exotique Et De Ses Filiales
    |March 1, 1978
    PubMed
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    A comprehensive survey in Gabon revealed nearly 100% parasitic infections in adults. Notably, high rates of Ascaris lumbricoides and Trichuris trichiura were observed, alongside the widespread presence of Schistosoma intercalatum.

    Area of Science:

    • Tropical Medicine and Parasitology
    • Public Health
    • Infectious Diseases

    Background:

    • Parasitic infections represent a significant global health burden, particularly in tropical regions.
    • Understanding the prevalence and distribution of specific parasites is crucial for effective public health interventions.
    • Previous studies in tropical Africa have established certain patterns of parasitic infections, which may not be universally applicable.

    Purpose of the Study:

    • To assess the prevalence and distribution of parasitic infections in the adult population of Gabon.
    • To identify specific protozoa and helminths present in the surveyed population.
    • To investigate the geographical spread of Schistosoma intercalatum, a significant cause of bilharziosis.

    Main Methods:

    • A cross-sectional survey involving the examination of 1,548 stool samples from the adult population in Gabon.

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  • Microscopic analysis was employed to detect protozoa and helminth eggs.
  • Geographical mapping was utilized to determine the distribution of identified parasites, particularly Schistosoma intercalatum.

    • Main Results:

    • An exceptionally high overall parasitism ratio of approximately 100% was observed in the adult population.
    • Dientamoeba fragilis was identified in 0.3% of the samples.
    • Contrary to typical observations in tropical Africa, high infestation rates of Ascaris lumbricoides and Trichuris trichiura were found in village settings. Schistosoma intercalatum was detected widely across the survey area, with a notable focus in Okondja, indicating extensive bilharziosis transmission.

    Conclusions:

    • The study highlights an alarming prevalence of parasitic infections in the adult population of Gabon.
    • The findings underscore the significant public health challenge posed by common helminths like Ascaris lumbricoides and Trichuris trichiura in the region.
    • The widespread presence of Schistosoma intercalatum confirms the extensive transmission of bilharziosis and necessitates targeted control strategies.