Echinococcus granulosus (Cestoda, Taeniidae) in the Iberian wolf

Area of Science:

• Veterinary Parasitology
• Wildlife Ecology
• Zoonotic Disease Research

Background:

• The taenid cestode Echinococcus granulosus poses a significant public health risk.
• Understanding parasite transmission cycles in wildlife is crucial for disease control.

Purpose of the Study:

• To investigate the prevalence and intensity of Echinococcus granulosus infection in Iberian wolves (Canis lupus signatus).
• To determine the genetic strain of Echinococcus granulosus found in this wolf population.
• To assess the role of the Iberian wolf in the maintenance of this zoonotic parasite's life cycle in Spain.

Main Methods:

• Screening of intestinal contents from 27 Iberian wolves for Echinococcus granulosus.
• Parasite quantification to determine infection intensity.
• Molecular characterization to identify the Echinococcus granulosus genotype.

Main Results:

• A prevalence of 15% (4 out of 27 wolves) was found infected with Echinococcus granulosus.
• Infection intensity varied, with a mean of 71 parasites per host.
• Molecular analysis identified the G1 genotype of Echinococcus granulosus in the infected wolves.

Conclusions:

• The Iberian wolf is involved in the maintenance of the Echinococcus granulosus life cycle in Spain.
• The presence of this zoonotic parasite in Iberian wolves has potential public health implications.
• Further research is needed to fully understand the epidemiological significance.