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Mosquitoes and sandflies in dogs and cats

These insects can do more than cause itchy bites. Learn about disease transmission, travel risks and protection tailored to your pet.

Mosquitoes and sandflies in dogs and cats

Why they are more than just annoying insects

When dogs or cats are bitten by mosquitoes, many pet owners initially only think of itching or a small swelling. In fact, certain species of mosquitoes can transmit diseases that can have a health impact on dogs and cats. The topic is becoming more and more important, particularly due to climate change and the increasing spread of new insect species.

This makes it all the more important to find out about risks, protective measures and the right precautions.

Not all mosquitoes are the same

There are numerous species of mosquitoes that can bite animals. While many native mosquitoes are primarily a nuisance, there are also species that can transmit pathogens.

Particular attention is paid to:

Under certain circumstances, these insects can act as vectors of pathogens.

  • Mosquitoes
  • Sandflies
  • Tiger mosquitoes

Why sandflies are particularly important

Sandflies are significantly smaller than normal mosquitoes and are often barely noticeable. They originally occur primarily in southern countries, but are now also found in parts of Central Europe.

The problem:

Sandflies can transmit the leishmaniasis pathogen.

Leishmaniasis in dogs

Leishmaniasis is one of the most well-known diseases transmitted by sandflies.

Possible symptoms:

Particularly treacherous:

The disease can occur months or even years after infection.

Not every infected dog shows symptoms immediately.

  • weight loss
  • Skin changes
  • Hair loss
  • Claw growth disorders
  • lethargy
  • Lymph node swelling
  • Kidney problems

Heartworms and other parasites

Certain species of mosquitoes can also transmit heartworms.

Larvae enter the dog's body through the mosquito bite and continue to develop there.

Possible consequences:

In southern holiday destinations this risk is sometimes significantly higher than in Germany.

  • Cough
  • Loss of performance
  • Breathing problems
  • Cardiovascular strain

Tiger mosquito: A growing issue

The Asian tiger mosquito is increasingly spreading in Europe.

It can transmit various pathogens and is therefore monitored intensively.

Not every tiger mosquito is automatically dangerous, but its prevalence shows how important up-to-date advice from a vet can be.

Can cats also be affected?

Yes.

Cats are also bitten by mosquitoes and sandflies.

Although many illnesses occur less frequently in cats or progress differently than in dogs, cat owners should still take the issue seriously.

Outdoor cats in particular have regular contact with biting insects.

How can you protect dogs and cats?

Complete protection is hardly possible.

The goal is to reduce the risk as much as possible.

This includes:

  • individual precaution
  • Avoiding unnecessary exposure
  • regular checks on the animal
  • veterinary advice

Why veterinary advice is important

Which precaution makes sense depends on many factors:

Therefore, there is no universal recommendation that is equally suitable for every animal.

The vet can individually assess which measures make sense for your animal.

  • dog or cat
  • Age
  • health
  • Place of residence
  • Travel behaviour
  • existing illnesses

Herbal remedies: Natural does not automatically mean safe

Many pet owners want protection that is as natural as possible.

You should know:

Herbal does not automatically mean effective or safe.

Frequently suggested remedies include:

The problem:

Take particular care with essential oils around cats.

  • essential oils
  • home remedies
  • Herbal mixtures
  • Fragrances
  • some substances can cause skin irritation
  • Some essential oils are problematic or even toxic for cats
  • the actual protective effect has often not been sufficiently investigated

Avoiding mosquitoes: What can also help

Some simple measures can help reduce the number of bites:

Sandflies in particular are often active at dusk and at night.

  • Avoid walks in particularly mosquito-rich areas
  • Reduce standing water points in the garden
  • Use insect screens
  • Do not place sleeping places directly next to water
  • Pay particular attention to animals during peak flight times

Why travelling can pose a particular risk

Many dogs now accompany their people on holiday.

The following destinations deserve particular attention:

Travel can increase the risk of certain mosquito-borne diseases.

It is therefore always advisable to seek veterinary advice before travelling.

  • Spain
  • Portugal
  • Italy
  • Greece
  • Croatia
  • Southern France

Stay alert after a bite

Not every mosquito bite leads to problems.

However, watch for the following symptoms:

In such cases, a vet should be consulted.

  • fatigue
  • weight loss
  • Skin changes
  • Cough
  • Fever
  • general poor performance

Conclusion

Mosquitoes and especially sandflies are more than just annoying insects. They can transmit various pathogens and are becoming increasingly important due to climate changes.

Individual advice from a vet is the best way to find the right protection for your dog or cat. Herbal products are not automatically safe or sufficiently effective and should also be viewed critically.

With a combination of attention, prevention and veterinary support, the risk of many diseases can be significantly reduced.

PET42 Editorial Team

About the author

The PET42 editorial team combines nutritional knowledge, practical experience and current research to provide understandable feeding recommendations for dogs.

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