Schistosomiasis: Introduction and Epidemiology
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Questions and Answers

Which genus is responsible for causing a series of related diseases in humans?

  • Fasciola
  • Ascaris
  • Schistosoma (correct)
  • Taenia
  • Which species of Schistosoma primarily affects the urinary tract and causes female genital schistosomiasis?

  • S. mansoni
  • S. haematobium (correct)
  • S. mekongi
  • S. japonicum
  • What is a critical factor contributing to the tropical distribution of schistosomes that infect humans?

  • Deforestation
  • Urbanization
  • Forced migration (correct)
  • Access to clean water
  • Where do Schistosome adults remain attached for most of their life span?

    <p>Venous plexus draining the urinary bladder</p> Signup and view all the answers

    What has resulted in regional increases in schistosomiasis?

    <p>Constructing irrigation canals and dams</p> Signup and view all the answers

    What is the primary effect of S. haematobium infection in humans?

    <p>Urinary tract disease</p> Signup and view all the answers

    Which factor is largely responsible for the tropical distribution of schistosomes that infect humans?

    <p>Geographical distribution of intermediate host snail species</p> Signup and view all the answers

    In which veins are S. mansoni found in adults?

    <p>Inferior mesenteric veins draining the adult women</p> Signup and view all the answers

    What is a critical factor contributing to regional increases in schistosomiasis?

    <p>Constructing irrigation canals and dams</p> Signup and view all the answers

    Which disease is caused by Schistosoma infection and results in physical growth and cognitive delays in children?

    <p>None, Schistosoma infections do not cause such effects</p> Signup and view all the answers

    Study Notes

    • The genus Schistosoma is responsible for causing a series of related diseases in humans.

    Schistosoma Species and Their Effects

    • Schistosoma haematobium primarily affects the urinary tract and causes female genital schistosomiasis.
    • S. haematobium infection in humans has a primary effect of causing physical growth and cognitive delays in children.

    Habitat and Distribution

    • A critical factor contributing to the tropical distribution of schistosomes that infect humans is the presence of freshwater snails.
    • Regional increases in schistosomiasis have resulted from changes in human behavior, such as increased migration and travel.

    Life Cycle and Habitat

    • Schistosome adults remain attached to the mesenteric or pelvic veins for most of their life span.
    • S. mansoni adults are found in the mesenteric veins.

    Disease and Infection

    • Schistosoma infection can cause a disease that results in physical growth and cognitive delays in children.

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    Description

    Test your knowledge on the introduction of Schistosomiasis, including the species that cause the disease and the related health conditions. Learn about the impact of chronic Schistosomiasis on the human body.

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