Related Experiment Videos
Gnathostomiasis in wild boars from Japan
K Ishiwata1, S P Díaz Camacho, Amrozi
1Department of Parasitology, Miyazaki Medical College, Japan.
Journal of Wildlife Diseases
|February 26, 1998
Summary
Gnathostoma doloresi, a parasite causing gastric lesions in pigs, is prevalent in Japanese wild boars. This finding highlights the established life cycle of this zoonotic nematode in Japan.
Area of Science:
- Veterinary Parasitology
- Zoonotic Diseases
- Wildlife Health
Background:
- Gnathostoma doloresi is a nematode parasite affecting pigs and wild boars in Southeast Asia.
- It causes gastric lesions and is a zoonosis responsible for human cutaneous larva migrans.
- Infections with G. doloresi are reported annually near Miyazaki Prefecture, Japan.
Purpose of the Study:
- To investigate the prevalence and distribution of Gnathostoma doloresi in wild boars in Miyazaki Prefecture, Japan.
- To compare parasite intensity between different geographic locations within the prefecture.
Main Methods:
- Nematode examination of gastric tissues from wild boars (Sus scrofa leucomystax).
- Capture and sampling of wild boars from two distinct locations: high mountains and sea level.
Main Results:
- Adult Gnathostoma doloresi were found in 31 out of 32 examined wild boars.
- The prevalence was extremely high, indicating a well-established parasite life cycle.
- Nematode intensity was significantly higher in wild boars from mountainous regions compared to those from sea-level areas.
Conclusions:
- Wild boars in Miyazaki Prefecture, Japan, harbor a high prevalence of Gnathostoma doloresi.
- The parasite's life cycle is well-established in this region, with higher intensities observed in mountainous habitats.
- This high prevalence in wildlife poses a continued risk for zoonotic transmission to humans.