Lungworms in dogs (Angiostrongylus)
Referring to Angiostrongylus vasorum as a lungworm is quite misleading. Although the early stages of the parasite do affect the lungs and severely infected dogs may show signs of coughing, other signs are far more common. These lungworms (Angiostrongylus vasorum) are also known as the French heartworm.
This is a parasite where the adult worm infects dogs but the young stages are carried by slugs and snails. The parasite itself may not cause the dog any problems unless present in very large numbers. However, in order to survive in the blood vessels the parasite releases substances which affect the clotting of the host's blood. Thus infected dogs are more prone to bleeding than normal dogs. This bleeding can pose a life-threatening risk to an affected pet. Thus this parasite is can be more dangerous to a dog than the more common worms that live in the intestine and it is very important to take precautions to prevent infection.
This disease used to be confined to dogs living in the South of the country (especially the South East, South West and South Wales). However, in the last ten years the disease has become much more common and has been seen in dogs as far North as Scotland. All dogs in the UK should now be considered potentially at risk.
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