Dirofilaria repens

These worms are not found in the UK and Ireland, however they are a threat to travelling pets in Europe and elsewhere in the world, spread about by infected mosquitoes.

What do they look like and where do they live?

  • Dirofilaria repens worms live in subcutaneous nodules under the skin of dogs.
  • Male worms are 5-7cm and females are 10-17cm long. The larval stage (known as microfilariae) circulate in the bloodstream and are microscopic

How can my pet contract Dirofilaria repens?

  • These worms are not found in the UK and Ireland, however they are a threat to travelling pets in Europe and elsewhere in the world
  • They are transmitted by infected mosquitoes

How will this parasite affect my pet?

  • If Dirofilaria repens is contracted whilst travelling abroad, the disease can lead to symptoms such as itchy skin and dermatitis as well as visible swellings under the skin which contain the adult worms

Can this parasite affect my health?

In endemic countries infected mosquitoes can transmit Dirofilaria repens to humans through their bite