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Related Experiment Video

Updated: Sep 27, 2025

Generating Transgenics and Knockouts in Strongyloides Species by Microinjection
09:42

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Published on: October 7, 2021

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Strongyloides stercoralis.

Jonathan M Czeresnia1, Louis M Weiss2,3

  • 1Division of Infectious Diseases, Department of Medicine, Montefiore Medical Center/Albert Einstein College of Medicine, Bronx, NY, USA.

Lung
|April 9, 2022
PubMed
Summary
This summary is machine-generated.

Strongyloidiasis, a parasitic roundworm infection affecting millions globally, can lead to severe hyperinfection in immunocompromised individuals. Early screening and treatment with ivermectin are crucial for managing this potentially life-threatening disease.

Keywords:
DiagnosisHyperinfectionImmunosuppressionIvermectinStrongyloidiasisTreatment

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Area of Science:

  • Infectious Diseases
  • Parasitology
  • Global Health

Background:

  • Strongyloidiasis is a widespread parasitic infection caused by *Strongyloides stercoralis*, prevalent in tropical and subtropical regions with poor sanitation.
  • Human infection occurs through skin penetration or ingestion of larvae, with a unique autoinfection cycle enabling chronic, often asymptomatic, infections.
  • Hyperinfection syndrome, a life-threatening complication, arises in immunocompromised individuals, particularly those on corticosteroids or post-transplant, leading to increased parasitic load and systemic invasion.

Purpose of the Study:

  • To provide a comprehensive overview of strongyloidiasis, including its transmission, pathogenesis, clinical manifestations, and diagnostic approaches.
  • To highlight the risks associated with hyperinfection syndrome and its triggers, such as corticosteroid use in COVID-19 patients.
  • To emphasize the importance of screening and timely treatment for at-risk populations to prevent severe outcomes.

Main Methods:

  • Review of existing literature on *Strongyloides stercoralis* epidemiology, clinical features, and treatment modalities.
  • Analysis of case reports and studies detailing strongyloidiasis, particularly focusing on hyperinfection syndrome.
  • Discussion of diagnostic methods including direct larvae visualization and serology.

Main Results:

  • Strongyloidiasis affects an estimated 600 million people worldwide, with autochthonous transmission noted even in developed countries.
  • Autoinfection contributes to chronic infections, while immune suppression can precipitate hyperinfection syndrome, characterized by massive parasitic proliferation and high mortality.
  • Corticosteroid use for conditions like COVID-19 pneumonia has been identified as a trigger for hyperinfection.

Conclusions:

  • Strongyloidiasis requires vigilant diagnosis and management, especially in patients with risk factors for immune suppression.
  • Screening and preemptive treatment with ivermectin are recommended for individuals with potential exposure to endemic areas before initiating immunosuppressive therapy.
  • Empiric treatment should be considered when diagnostic testing is delayed or unavailable to mitigate the risk of severe disease.