Pet Travel

When we travel to certain holiday destinations medical advice often includes information on diseases which can be spread by biting flies, mosquitoes and ticks (arthropods) such as Malaria.

Important considerations when travelling with your pet

Introduction

When we travel to certain holiday destinations medical advice often includes information on diseases which can be spread by biting flies, mosquitoes and ticks (arthropods) such as Malaria.

Visitors often have none of the natural immunity that helps to protect the native population from infection and so are at greater risk. Exactly the same applies to our pets, especially dogs, and they are often more likely to get bitten than humans.

Increased mobility of pet animals, especially dogs, with their owners travelling through "at risk areas" and back home has resulted in geographic spread in mainland Europe.


Increasing contact of pet animals and their owners with "at risk environments". Increased accessibility of traditional wilderness areas has occurred and also there has been an increase in wildlife carriers for these diseases e.g. deer and foxes.


Some of the arthropods are particularly good at adapting to new climates. Ticks are a prime example and they will find special niches in which to survive almost any weather condition. Add to this the general tendency for temperate areas of Europe to become warmer and wetter, which helps spread the fly and mosquito populations.

Secondly, there are also new arthropod-transmitted diseases being reported which affect humans and their pets, especially in the temperate (non-tropical) areas of Europe.

What are the main arthropod-transmitted diseases that could infect travelling pets?

The main arthropod-transmitted diseases for dogs (and cats) in Europe are:

  • Babesiosis: transmitted by tick bites
  • Ehrlichiosis: transmitted by tick bites
  • Heartworm disease: transmitted by mosquito bites
  • Leishmaniasis: transmitted by sand fly bites

What is Babesiosis?

What is Babesiosis?

The organism causing this disease is a small protozoan parasite that, after being injected by the tick bite, invades red blood cells. This causes severe and sometimes life-threatening anaemia, shock organ failure and jaundice, as well as fever. There are many types of Babesia organisms, two affect dogs, the most important in southern Europe being Babesia canis. However, cats, horses, cattle, humans and wildlife may be susceptible to other types. They are all spread by ticks.

Diagnosis

Although some of these diseases cause signs of illness within a few weeks after a bite, the real problems may come many months or years after the animal has returned home. This long incubation period means that a history of travelling is very important information. The arthropod transmitted diseases are also great impersonators; they look like other diseases which are more familiar.

Diagnosis is often difficult because the organisms tend to "hide" or become "occult". However, there has been great development in tests for heartworm disease and these should be readily available from laboratories in the UK. Traditional serological tests are available for the other diseases, but these have a number of disadvantages. Tests based on detecting the DNA of micro-parasites in blood using PCR (the polymerase chain reaction) are now available, such as those offered by the Molecular Diagnostic Unit at Langford Vets.

Can these diseases be treated?

Yes, but the treatments are difficult and may have to be imported into the UK. Each of these diseases has a completely different treatment and the outcome is different in each case.
Unfortunately, as in some human cases of malaria, some pets may become permanently infected with a disease and relapse during periods of stress.

Can these diseases be prevented?

Yes. Please contact your veterinary surgeon for details.

Recommended Testing For Imported Dogs
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