Strongyloides stercoralis infestation associated with septicemia due to intestinal transmural migration of bacteria
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Updated: Sep 28, 2026

Generating Transgenics and Knockouts in Strongyloides Species by Microinjection
Published on: October 7, 2021
Uday C Ghoshal1, Ujjala Ghoshal, Manoj Jain
1Department of Gastroenterology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Raebareli Road, Lucknow, India. ghoshal@sgpgi.ac.in
Abstract:
Strongyloides stercoralis infestation is common in the tropics and is usually asymptomatic. Patients with immunocompromised states may develop hyperinfection and fulminant disease. It has been suggested that bacteria accompany S. stercoralis during its passage across the bowel wall, resulting in systemic sepsis. Herein is a report on a 30-year-old man with S. stercoralis infestation and small bowel bacterial overgrowth presenting as malabsorption syndrome. He developed extensive duodenojejunal ulceration, septicemia and fatal hypokalemia. Blood and jejunal fluid grew Escherichia coli with the same antibiotic sensitivity patterns. This supports the hypothesis of migration of bacteria from the intestinal lumen as a cause of septicemia in patients with fulminant S. stercoralis infestation.
Insights
Strongyloides stercoralis infection can cause severe illness in immunocompromised individuals. This case suggests gut bacteria migrating with the parasite cause sepsis in severe Strongyloides stercoralis infestations.
Area of Science:
- Infectious Diseases
- Gastroenterology
- Microbiology
Background:
- Strongyloides stercoralis (S. stercoralis) is a parasitic nematode prevalent in tropical regions.
- While often asymptomatic, S. stercoralis can cause hyperinfection and fatal disease in immunocompromised patients.
- A hypothesis suggests bacterial translocation across the bowel wall contributes to sepsis in severe S. stercoralis cases.
Observation:
- A 30-year-old man presented with malabsorption syndrome due to S. stercoralis infestation and small bowel bacterial overgrowth.
- The patient developed severe duodenojejunal ulceration, septicemia, and fatal hypokalemia.
- Escherichia coli was isolated from both blood and jejunal fluid, exhibiting identical antibiotic sensitivity.
Findings:
- This case report provides evidence supporting the hypothesis of bacterial migration from the intestinal lumen.
- Bacterial translocation appears to be a significant factor in the pathogenesis of septicemia during fulminant S. stercoralis infestation.
- The findings highlight the critical role of Escherichia coli in the fatal outcome.
Implications:
- Understanding the mechanism of bacterial translocation in S. stercoralis is crucial for managing severe infections.
- This study underscores the importance of considering bacterial co-infection in immunocompromised patients with S. stercoralis.
- Further research into preventing bacterial migration could improve outcomes for patients with severe parasitic infections.
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