Lungworm in London - what is the risk?

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  • 1617 cases of lungworm1 have been reported in a 50 mile radius of London
  • 3 out of 4 foxes2 are infected with the parasite in Greater London alone

Worryingly Lungworm has spread throughout much of the country over the last few years, with London having the highest number of lungworm cases compared to anywhere else in the country. This trend also looks set to continue meaning that dogs living in this area are at a significant risk of contracting the potentially fatal parasite.

It is known that foxes can contribute to the spread of lungworm, with a study from the Royal Veterinary College reporting that 3 out of 4 foxes2 in London were carrying & spreading lungworm. In other research from the University of Bristol, the number of foxes infected with lungworm in the South of England had been shown to have more than doubled over an 8 year period, increasing from 23.3% to 50.8%.3,4 The most recent work from the RVC found the level in London to be 74.4%.

Dogs can contract the parasite by ingesting slugs and snails infested with lungworm spread via dog and fox faeces, which contain the lungworm larvae.

You can check cases of lungworm in your area by visiting www.lungworm.co.uk/map


What is lungworm?

Lungworm (Angiostrongylus vasorum) is a type of parasitic worm which affects the heart and blood vessels of the lungs of animals such as dogs and foxes. Dogs (and foxes) can contract the lungworm parasite by eating infected slugs and snails or potentially even by eating grass or drinking from puddles and outdoor water bowls which may contain infected larvae released in the slime trail.


What are the signs of lungworm?

Lungworm infections can be fatal and it can be difficult to tell if your dog has lungworm as some signs, such as lethargy, weight loss and a cough, can be easily confused with other conditions and often, signs may not be shown at all in the early stages of infection. In more severe cases dogs can develop breathing difficulties & they can even suffer from serious bleeding due to problems with their blood clotting. Thankfully lungworm treatment for dogs is available from your vet, but given the serious nature of this disease it is important to seek help as early as possible.


Can I prevent lungworm in my dog?

The good news is that lungworm can be prevented in your dog, by making a monthly preventative treatment part of your dog’s regular anti-parasite routine. Your vet will be able to suggest an effective lungworm preventative product.


What should I do next?

  • Visit the map to view cases in your area www.lungworm.co.uk/map
  • Call your vet today, and ask for a preventative lungworm treatment

References:

  1. www.lungworm.co.uk/map
  2. Fox et al. (2017) Proceedings of WAAVP, Abstract No. 4196, p.163.
  3. Morgan et al. Veterinary Parasitology (2008) 154:48–57.4.
  4. Taylor et al. Parasitology (2015)142(9):1190-5

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L.GB.MKT.10.2019.20749

Date of review: November 2019

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