Felis ISSN 2398-2950

Taenia taeniaeformis

Synonym(s): Cysticercus fasciolaris (metacestode)

Contributor(s): Stephen Barr, Maggie Fisher, Grace Mulcahy

Introduction

Classification

Taxonomy

  • Class: Cestoda.
  • Family: Taeniidae.
  • Genus: Taenia.

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Clinical Effects

Epidemiology

Habitat

  • Adult tapeworm in small intestine of hunting or stray cats and in other Felidae with low prevalence in foxes.
  • Segments and eggs in environment.
  • Metacestode (strobilocercus) in liver of rodents - house and field mice, voles, rats, muskrats, etc.

Lifecycle

  • Adult tapeworm.
  • Gravid proglottid.
  • Egg.
  • Metacestode (strobilocercus).
  • Rodent intermediate host.

Transmission

Transmission to rodent
  • Segments migrate out of anus and fall to the ground or are passed in feces to be eaten by rodents.
Transmission to cat
  • Metacestode (strobilocercus) in liver of rodent eaten when the cat is hunting.

Pathological effects

  • Very little protective immunity develops in the cat population but incomplete immunity develops in repeatedly infected cats.
  • The presence of 1 or many tapeworms usually has little effect on the health of a well-fed cat.
  • Very large numbers of worms in young, poorly nourished cats could reduce growth rates.
  • Very rarely, obstruction of the intestine can occur.

Control

Control via animal

  • Anthelmintic treatment of cat.
  • Hunting activities should be restricted.

Control via chemotherapies

Either Praziquantel Praziquantel.
Or Fenbendazole Fenbendazole.
Or Mebendazole Mebendazole.
Or Dichlorophen Dichlorophen.

Diagnosis

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Further Reading

Publications

Refereed papers

  • Recent references from VetMed Resource and PubMed.
  • Williams J F & Shearer A M (1981) Longevity and Productivity of Taenia taeniaeformis in cats. Am J Vet Res 42.

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