Summertime and the months either side are the most popular time of year to head to Europe, including if you’re travelling with your dog. But did you realise that you need to be wary of the disease known as Leishmania, if you’re travelling to much of southern Europe? Read on to find out more about this disease and the precautions you should take to protect your dog.
Read more about ways to keep yourself and your dog healthy while travelling
What is Leishmania?
Leishmania is an infection spread by female sandflies. The primary hosts of the disease are dogs. If your dog is bitten by a female sandfly that has been infected by biting an infected dog, your dog may become infected with Leishmania.
Following infection, one of three things may occur. The dog may clear the infection, the infection may develop sub-clinically (with the parasite being harboured for a number of months of years before signs occur), or the dog may develop signs of the disease. The signs of Leishmania can be quite varied, including skin lesions, hair-loss, intermittent lameness, weight-loss, anaemia, fever and lethargy. In the most severe cases, organs like the liver, kidneys and bone marrow can be affected. Once a dog develops an active infection, cure is not possible, but rather long-term medication and monitoring is required, to prevent it from becoming fatal in severe cases.
For more information, see this article.
Which Parts of Europe Are Affected?
Leishmania is prevalent across southern Europe including the following:
- Greece (one of the highest levels of incident)
- Southern France, including Corsica
- Most of Italy (except the far north)
- The Balkans (coastal Slovenia, coastal Croatia, Bosnia, Montenegro, southern Serbia, Northern Macedonia, Albania, Bulgaria)
Leishmania in dogs is also found in many other warmer parts of the world, including northern Africa and the southern USA. There are also other strains that can affect humans, but these are only found in the developing world.
What Time of Year is Leishmania a Risk?
For Leishmania to be a risk, sandflies need to be present, which doesn’t occur year round. In southern Europe, the risk period is from May to September. If there has been a warm summer, the period may extent into October. Take note of whether sandflies are around, during their active period from sunset to sunrise.
What You Can Do to Protect Your Dog from Leishmania
There are a number of options available to protect your dog from Leishmania. The main way you can protect your dog is by keeping them inside from dusk to dawn, the period of day when sandflies are active. In particular, avoid wooded and garden areas from dusk where you notice sandflies are present. Your dog should also sleep inside, not outside. Plus, netting should be present on doors or windows left open, or else they should be shut, to prevent sandflies from coming inside.
You should also use an insect deterrent for your dog. One of the most popular methods is a collar, such as the Seresto (or Foresto) collar from Bayer or the Scalibor collar from Merck. These collars are also used for flea and tick prevention, and an advantage is they are effective for multiple months, potentially the entire risk season. (Note that some dogs have reported allergic reactions to Scalibor collars.) Alternatively, use a strong spot-on flea and tick treatment, such as Advantix.
The other option is to use the recently introduced vaccination for Leishmania. The Canileash vaccine strengths the dog’s immune response and reduces the likelihood of symptoms appearing (not actual infection occurring). Dogs require three injections given at three-weekly intervals from the age of six months, plus a single annual booster. Steps to prevent insect bites (such as a collar of spot-on treatment) should still be used in conjunction with the vaccine.
Ideally, see your vet and ask for their guidance, as recommendations do change from time to time.
A Note For Dogs Travelling to Australia
If you’re travelling with a dog from Australia and intend to return to Australia, or if you intend to take your dog to Australia in the future, you need to be particularly careful of leishmania. Dogs travelling to Australia require multiple blood tests to show they are free from certain diseases not present in Australia, including Leishmania. If your dog tests positive for Leishmania (even if they do not show symptoms), you probably will not be able to take your dog to Australia.
This was the case for us, so I was extra vigilant with preventing my dog from being exposed to leishmania, while travelling to Bulgaria and Greece in late summer. My dog was already using Advantix for fleas and ticks, but after speaking to a vet in Bucharest, we additionally got a Seresto collar, for 99% effectiveness. We skipped getting the vaccine, as getting three shots was tricky with us travelling around, plus it doesn’t prevent the initial infection.
A couple of months later in the US when we had our dog tested for Leishmania, I was very relieved when we received the negative result!
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