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Capillaria philippinensis in Upper Egypt: has it become endemic?
Rasha A H Attia1, Mohammed E M Tolba, Doaa A Yones
1Department of Parasitology, Faculty of Medicine, Assiut University, Egypt. rashaattia@gmail.com
The American Journal of Tropical Medicine and Hygiene
|January 11, 2012
Summary
Human infections with Capillaria philippinensis, a newly emerging parasite in Upper Egypt, were studied in 21 inpatients. Scanning electron microscopy revealed adult worms invading the jejunal mucosa, confirming this parasitic infection.
Area of Science:
- Parasitology
- Infectious Diseases
- Gastroenterology
Background:
- Capillaria philippinensis infections represent an emerging parasitic threat in Upper Egypt.
- Human cases present with severe gastrointestinal symptoms and electrolyte imbalances.
Purpose of the Study:
- To provide an overview of human Capillaria philippinensis infections in Upper Egypt.
- To characterize the clinical presentation and morphological features of the parasite.
Main Methods:
- Clinical data from 21 inpatients at Assiut University Hospital were analyzed.
- Stool examinations utilized direct smears and formalin-ether concentration.
- Light microscopy and scanning electron microscopy (SEM) were employed for morphological analysis.
Main Results:
- Patients exhibited chronic diarrhea, weight loss, hypoalbuminemia, and electrolyte deficiencies.
- SEM confirmed adult worms invading the jejunal mucosa, partially covered by intestinal villi.
- Two distinct egg types (thick- and thin-shelled) were identified and measured.
Conclusions:
- Capillaria philippinensis is an emerging cause of human parasitic infection in Upper Egypt.
- The parasite invades the jejunal mucosa, leading to significant gastrointestinal pathology.
- Further research is needed to understand the epidemiology and treatment of this infection.
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