Taenia hydatigena

• the most important species
• final host
  • dog
  • alimentary tract
• intermediate host
  • ruminant, horse, or pig
• life cycle is completed when the carnivore eats the tissues of the intermediate host containing the cysts
• the intermediate stage - Cysticercus tennuicollis
  • fluid filled cysts on the surface of the liver and in the peritoneal cavity

NB: other Taenia species have muscle and brain as preferred sites in the intermediate hosts

Some can infect humans - zoonoses