Joyeuxiella spp

From Dog
Joyeuxiella echinorhyncoides - semi-thin sections of mature eggs

Joyeuxiella are a parasitic small intestinal tapeworm of dogs and cats across southern Europe, Middle East and Asia.

The first intermediate hosts are copepods with second (paratenic) hosts being freshwater fish. Dogs become infected by eating infected fish[1]. Plerocercoids develop within the small intestine of the dog, and the adult tapeworms reside in the jejunum and ileum.

The prepatent period is 3 to 4 weeks and eggs are released from the gravid proglottids and pass out in the dog's feces[2].

Species which have been reported in dogs include:

  • Joyeuxiella pasqualei[3]
  • Joyeuxiella echinorhynchoides
  • Joyeuxiella fuhrmanni

No clinical signs have been reported with this parasite in dogs and co-infections with other intestinal parasites is very common[4].

Diagnosis is based on coprological identification of eggs.

Treatment is effective with oral or parenteral praziquantel at 5 mg/kg given every month.


  1. Barutzki D & Schaper R (2003) Endoparasites in dogs and cats in Germany 1999-2002. Parasitol Res 90(3):S148-50
  2. Millán J & Casanova JC (2009) High prevalence of helminth parasites in feral cats in Majorca Island (Spain). Parasitol Res 106(1):183-188
  3. Minnaar WN & Krecek RC (2001) Helminths in dogs belonging to people in a resource-limited urban community in Gauteng, South Africa. Onderstepoort J Vet Res 68(2):111-117
  4. Minnaar WN et al (2002) Helminths in dogs from a peri-urban resource-limited community in Free State Province, South Africa. Vet Parasitol 107(4):343-349