Leishmaniasis in Dogs: How to Protect Your Dog in Lebanon

Leishmaniasis in dogs is a serious disease spread by the bite of an infected sand fly, and it is present across the Mediterranean region, including Lebanon. There is no complete cure once a dog is infected, which is why prevention through sand-fly season, roughly May to October here, is the single most important thing you can do. Protection comes down to a few clear steps: a vet-guided sand-fly repellent, keeping your dog indoors at dusk and dawn, and early screening if any warning signs appear. If you are worried, call the clinic and we will guide you.

At our clinic we take this disease seriously because of where we live. Sand flies are part of the Mediterranean summer, and a single bite is all it takes. The good news is that leishmaniasis in dogs is largely preventable, and this guide explains how.

What Leishmaniasis Is and How Dogs Catch It

Leishmaniasis is caused by a microscopic parasite called Leishmania. Dogs do not catch it from each other through normal contact, sharing a bowl, or playing together. They catch it from the bite of an infected phlebotomine sand fly, a tiny insect that feeds mainly at dusk and dawn during the warm months.

This is a Mediterranean-region disease, which is why it matters for Lebanese dogs. The sand fly that carries the parasite thrives in our climate, and dogs are its main animal reservoir. The Merck Veterinary Manual describes the sand fly as the primary route of infection, with direct dog-to-dog spread not being a normal transmission path.

What makes this disease tricky is timing. The incubation period, meaning the time from the bite to the first visible signs, can range from a few months to several years. Some dogs carry the parasite for a long time without looking obviously sick, which is why an outdoor dog in an endemic area like ours deserves attention even when it seems healthy.

The Warning Signs to Watch For

Because the signs come on slowly, they are easy to dismiss as aging or a minor skin problem. Knowing what to look for helps you act early, when there is far more we can do.

The skin and coat signs (the cutaneous side of the disease) are often the first thing owners notice:

• Hair loss, frequently starting on the head and spreading over the body
• Dry, flaky, scaly skin
• Sores or lesions, especially on the head and legs
• Crusting around the eyes, nose, and ears, sometimes with bleeding from ear lesions

Then there are the whole-body signs, which reflect what the parasite is doing internally:

• Gradual weight loss despite a normal or reduced appetite
• Lethargy and less interest in exercise
• Swollen lymph nodes (the small glands you can sometimes feel under the jaw or behind the knees)
• Nosebleeds
• Abnormally long, overgrown nails

Any one of these on its own can have many causes. What raises our concern is the combination, especially skin changes together with weight loss or low energy in a dog that spends time outdoors. These signs are easy to miss early, and that is why a screening test matters: a simple blood test gives a clear answer instead of leaving you guessing.

Why Prevention Beats Treatment Here

Here is the honest part, and it shapes everything. There is no complete cure for leishmaniasis in dogs. Treatment can control the disease and give a dog a good quality of life for years, but as the Merck Veterinary Manual notes, therapy often improves signs without eliminating the infection completely, so the dog may remain a carrier and relapses are common.

That single fact is why we put so much weight on protection. If the disease cannot be fully cleared once it takes hold, then the smartest medicine is to stop the bite from ever happening. In my experience, owners understand this quickly once it is explained plainly: the goal is not to treat leishmaniasis, it is to prevent it.

How to Protect Your Dog (The Lebanon Plan)

Protection works best as a layered routine through sand-fly season, not a single product. Here is what we recommend for dogs in Lebanon.

Use a vet-guided sand-fly repellent. This is the cornerstone. At our clinic we use permethrin-based spot-on repellents, applied to the skin of the neck, such as Advantix. Repellents of this family are proven to sharply reduce sand-fly bites, and they work alongside your dog's regular flea and tick treatments, adding flea and tick protection on top of the sand-fly barrier rather than replacing them. These products are chosen and timed by a vet, must go on before exposure begins rather than after, and permethrin must never be used on cats, in whom it is toxic.

Reduce exposure at dawn and dusk. Sand flies are most active in the early morning and evening. Keeping your dog indoors during those windows through the May to October season removes a large share of the risk, and fine mesh screens on windows and sleeping areas add another barrier.

Manage the environment. Sand flies breed in damp, dark spots with decaying organic matter. Reducing piles of leaves, damp debris, and standing organic waste around the home makes your property less inviting to them.

Do not count on a vaccine. No leishmaniasis vaccine is currently available in Lebanon. That makes the routine above, repellent plus habits, the whole of your dog's protection here, which is exactly why it deserves to be done properly every season.

Because sand-fly repellents are prescribed and matched to your specific dog, they are not sold as off-the-shelf items in our online shop. The flow is simple: message the shop line on WhatsApp at +961 76 423 505, we confirm the right protection for your dog, and we prescribe and deliver it across Lebanon. If you would rather talk it through first, call the clinic during opening hours on +961 9 548 115.

If You Suspect Leishmaniasis: Diagnosis and Care

If your dog shows the signs above, the next step is a clinical exam and a blood test. Diagnosis usually relies on a serology test, which looks for the dog's antibody response to the parasite, sometimes backed up by other laboratory methods. Early detection genuinely helps, because a dog caught earlier in the disease has more options and a better outcome.

If the test is positive, treatment is a long-term partnership, not a one-off prescription. It is managed with the vet over time, with medication and regular monitoring, and it can keep many dogs comfortable and stable for years. There are no home remedies for this disease.

In my experience, the dogs that do best are the ones whose owners raised the question early. I bring up leishmaniasis myself with owners of outdoor dogs during our warm months, because our region's sand-fly season makes it a real and present risk here, not a rare textbook diagnosis. Our check-ups are thorough and unhurried for exactly this reason: there is time to feel the lymph nodes, look closely at the skin and nails, and talk through prevention before there is ever a problem.

Leishmaniasis and the Rest of Your Summer Routine

Sand-fly protection is one piece of warm-season parasite control, and it sits naturally alongside your dog's flea and tick prevention. Keeping both in place through the same season means your dog is protected on both fronts.

The wider Lebanese summer brings a few more risks worth planning for. Heat is a big one: our advice on recognising and preventing heat stroke is essential reading before the peak of summer.

Questions Pet Owners Always Ask

Can my dog catch leishmaniasis from another dog?

Not through normal contact. Leishmaniasis spreads through the bite of an infected sand fly, not through dogs playing, sharing bowls, or living together. This is why controlling sand-fly bites, rather than isolating dogs from each other, is the way to protect them.

What are the first signs of leishmaniasis in dogs?

The earliest signs are often skin changes such as hair loss (frequently starting on the head), flaky skin, and sores or crusting around the eyes, nose, and ears. These may come with gradual weight loss, low energy, swollen lymph nodes, nosebleeds, or overgrown nails. Because the signs build slowly, a blood test is the reliable way to confirm what is going on.

Is leishmaniasis in dogs curable?

There is no complete cure. Treatment can control the disease and give a good quality of life, but the dog may remain a carrier and relapses are common. This is exactly why prevention through sand-fly season matters so much.

When is sand-fly season in Lebanon?

Sand flies are most active in the warm months, roughly May to October, and they bite mainly at dusk and dawn. Protection should be in place before the season starts, which is why we recommend planning your dog's repellent ahead of the warm weather.

Can people catch leishmaniasis from their dog?

Leishmaniasis is a zoonotic disease, meaning it can affect people, but not by touching or living with an infected dog. Humans are infected the same way dogs are, through the bite of an infected sand fly. Protecting your dog from sand flies and reducing them around the home helps protect your family too, and the AVMA prevention guidelines stress that preventing infection in dogs is part of protecting human health in endemic areas.

Talk to Us About a Protection Plan

If you have noticed any of the warning signs, or you simply want a sand-fly protection plan for the season, call the clinic and we will help. We are in Jbeil, Byblos, and we deliver protection across Lebanon.

For appointments and medical questions, call us during opening hours on +961 9 548 115. For prevention products, message the shop line on WhatsApp at +961 76 423 505 and we will confirm the right protection for your dog. In an emergency, our line answers 24/7 on +961 3 517 831: call first and we will be ready to receive your pet at the clinic. You can also browse our Dog Health collection, with delivery across Lebanon and Syria.