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Taeniasis in Bali, Indonesia: The current situation, 2022-2025.
Ivan Elisabeth Purba1, I Kadek Swastika2, Dewi Masyithah Darlan3
1Directorate of Postgraduate, Sari Mutiara Indonesia University, Medan, Indonesia; Faculty of Economics and Business, Sari Mutiara Indonesia University, Medan, Indonesia.
Parasitology International
|May 27, 2026
Summary
Taenia saginata taeniasis remains endemic in Bali due to raw beef consumption, while Taenia solium taeniasis has been interrupted by improved sanitation and dietary changes. Continued surveillance is crucial for prevention.
Area of Science:
- Veterinary Public Health
- Infectious Disease Epidemiology
- Parasitology
Background:
- Taenia saginata and Taenia solium cause taeniasis, endemic in specific Bali villages.
- Previous studies established endemicity in Ketewel (T. saginata) and Dukuh (T. solium).
Purpose of the Study:
- To evaluate the current epidemiological status of taeniasis in Bali.
- To identify factors influencing the transmission of T. saginata and T. solium.
Main Methods:
- Prospective epidemiological surveys in Ketewel (2022-2025) and Dukuh (2022, 2025).
- Fecal sample analysis for taeniid eggs.
- Questionnaires and interviews to assess risk factors.
Main Results:
- 19 cases of T. saginata taeniasis identified in Ketewel; no significant change from prior periods.
- No taeniid eggs detected in fecal samples from Dukuh in 2022 or 2025.
- Raw beef consumption linked to T. saginata persistence; improved sanitation and pig confinement linked to T. solium interruption.
Conclusions:
- Sustained T. saginata transmission in Ketewel linked to dietary habits.
- Interruption of T. solium transmission in Dukuh attributed to public health interventions.
- Ongoing health education and sentinel surveillance are vital for taeniasis control in Bali.
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