Disease risks when travelling to continental Europe

An increasing number of owners are taking their pets with them on holiday when they travel to continental Europe. This factsheet provides information on the more important novel diseases that your dog may come into contact with abroad.

There are a number of protozoal diseases found in continental Europe that can be transmitted to your dog. These diseases include Babesiosis, Leishmaniosis, and Ehrlichiosis. These diseases are rarely seen in the UK and, consequently, British dogs are unlikely to have developed any protective immunity to them. Your dog may also be exposed to a number of parasitic worms including the heartworm Dirofilaria and the tapeworm Echinococcus granulosus. There also exists the small possibility of your dog being exposed to rabies.

All the protozoal diseases mentioned above are transmitted by insects. Babesia and Ehrlichia are carried by ticks and Leishmaniosis by a small biting fly called the Sand fly. The heartworm is transmitted by biting mosquitoes. Echinococcus can be caught by eating the tapeworm egg, usually in uncooked meat. Rabies is most commonly transmitted following a bite from a rabid dog or other animal.

All of these diseases, with the exception of Echinococcus, are potentially life threatening. British dogs are unlikely to have any natural resistance to these diseases and may therefore be particularly badly affected.

The areas where these diseases may be found is constantly enlarging. Some of these diseases are more common in certain places, or at particular times of the year depending on the distribution and feeding activity of the vectors (ticks and biting flies).

Canine Leishmaniosis occurs in most of the countries surrounding the Mediterranean basin, including:

  • Albania
  • Bosnia-Herzegovina
  • Croatia
  • Cyprus
  • France
  • Greece
  • Italy
  • Malta
  • Portugal
  • Spain

The sand fly season stretches from May/June to September/October.

Babesiosis is widespread in France and constantly evolving; it has been reported both in the South West and, more recently, in Normandy and Paris. There is a peak of disease both in the Autumn and Spring, with the condition almost disappearing during the months of July and August.

Monocytic Ehrlichiosis is an important disease of dogs in southern Europe and other areas of the Mediterranean basin.

British dogs holidaying on the continent should be protected from tick bites:

  • Dogs should be treated with a product that kills ticks before they have started feeding (within 24h).
  • This treatment should be repeated at the prescribed interval(s) for tick prevention. You may need to apply the product more often than you would if you were treating your pet for fleas.
  • A daily check should be made of your dog to identify any ticks – any ticks found should be removed immediately. You can take your pet to a veterinary practice to have this done but it may be useful to obtain training in the removal of ticks from your dog prior to travelling.

British dogs holidaying on the continent should be protected against biting flies and mosquitoes:

  • Spray your dog regularly with a licensed fly repellent.
  • Treatment with the fly repellent should be repeated at the prescribed interval(s).
  • Dogs should be kept indoors during the evening and night time to further minimise the risks from biting sand flies.

Use of a deltamethrin collar (Scalibor, Intervet) provides 5-6 months protection against ticks and sand flies.

If making regular visits to the continent you may want to have your dog vaccinated against Babesiosis. A vaccine is available in France for this purpose.

Treatment with a wormer containing praziquantel is required before returning to the UK in order to eliminate infection with Echinococcus tapeworms.