Worm Advice

Lungworm

Angiostrongylus vasorum

What do they look like and where do they live?

  • Angiostrongylus vasorum (lungworm) resides in the heart and pulmonary arteries and can be fatal to dogs
  • A. vasorum adults are slender worms of around 2.5cm in length but they are never seen as they remain inside the infected dog or fox. The larvae, which are passed out in poo, are also impossible to see as they are microscopic

How can my pet contract Lungworm?

  • Dogs can become infected with this life-threatening parasite by swallowing infected slugs and snails
  • A. vasorum reports are spreading with cases now being found beyond the traditional areas in Southern England and Wales; it has also now been confirmed in the Midlands, Northern England, Scotland and Ireland
  • Slugs and snails can be very small; even if dogs don’t eat slugs and snails on purpose, they may do accidentally when eating grass, drinking from outdoor water bowls, rummaging in undergrowth or playing with a toy outdoors

How will this parasite affect my pet?

  • Symptoms can be varied, but can include, coughing, tiring easily, weight loss, poor appetite, vomiting, diarrhoea, excessive bleeding from minor wounds and seizures. A dog may show one or any combination of these
  • If treatment is initiated early enough, dogs can go on to make a full recovery
  • If left untreated, this parasite can be fatal to dogs
  • Even after successful treatment, re-infection is possible so on-going preventative treatment should be considered

Can this parasite affect my health?

  • Angiostrongylus vasorum (lungworm) is not considered a threat to human health