Tick Increase and Heartworm Prevention Feature

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Your dog seems off. Instead of the happy bundle of energy that you engage with every day,
there are obvious signs something is wrong. A limp, swollen joints, no desire to eat, or maybe a
general lethargy that appears to be bordering on depression. It’s painful to witness and your
heart breaks wondering what might be wrong.
Several conditions can cause those specific symptoms in your beloved pet. One is Lyme
disease. Lyme disease, which can be difficult for a veterinarian to diagnose, is potentially fatal
for dogs if left untreated. The good news is that death is a rare outcome because of our modern-
day preventative programs to address parasites in animals.
Diligence is becoming more important than ever given our changing environment. Ticks, the
parasite that carries the bacterial agent Borrelia burgdorferi (which causes Lyme disease), are
increasing their numbers in Canada. And not just the bushy, wooded areas where we typically
expect to find them. They are also on the rise in urban centres, posing a risk to both companion
animals and humans.
The culprit for that increase? A warming environment. According to the Government of Canada
website, “Climate warming and other environmental changes have contributed to the expansion
of the range of several tick species into higher latitudes in North America. As temperatures
increase in Canada, the environment becomes more suitable for ticks, and the season suitable
for tick activity lengthens, so tick-borne diseases are likely to become more common in

Ticks cannot jump onto an animal or human. They can’t fly either. They just lurk in grass and
bushes, waiting for a warm body with tasty blood to brush up against the spot so they can climb

aboard. If successful, a tick needs to be attached to a host for 24 hours to infect them, assuming
it is carrying Borrelia burgdorferi. To determine that, you must remove the tick and bring it in for
The City of Toronto has a thorough surveillance program for Blacklegged ticks, using a dragging
method in both the spring and fall to collect ticks and identify their prevalence in specific areas.
You can clearly see risky areas to avoid.

Removing ticks
Wear gloves. Using tick twisters (the tool doesn’t compress the tick and therefore reduces the
risk of it crushing and fluid running into the wound…available on Amazon), rotate the tick and
pull up with steady, even pressure. When the tick is removed, wash the area on your pet and
your hands. Dispose of it properly so it doesn’t creep back by flushing it down the toilet. Visit
https://etick.ca/en for information on submitting ticks.

Being proactive is the key to keeping your dog (and cats) free from fleas and ticks. And the
arrival of warm weather means it’s time to book a visit with your veterinarian to determine the
best prevention plan for your pet.
Here are some tips:
– Invest in prescription oral tablets that can quickly kill fleas and ticks and have residual
– Wash bedding regularly, keep your carpets clean and your yard tidy, especially mowing
the lawn
– Discuss the Lyme disease vaccine for your dogs with your veterinarian
– Consider a spray or insect fogger (you and your pets have to leave while it’s in
– Note that not all products have the same effectiveness so get the right information from
your vet

Don’t forget about heartworm
Ticks are a big concern for pet owners as the months get warmer. But it’s also important to be
conscious of heartworm disease. Like ticks, prevention programs have gone a long way to
keeping heartworm numbers low in Canada. The federal government added another layer of
protection with the ban on imported dogs last October. The intent of the ban was to better
control a rise in rabies cases, though heartworm was also a risk associated with dogs arriving
from other countries.
Heartworm disease can kill dogs. Transmitted by mosquitoes, a bite can lead to the
development of worms around the heart. Larvae travel through the infected dog’s bloodstream

to major vessels and arteries, maturing into adult worms. They stress the animal’s heart and
weaken muscles, potentially causing the equivalent of human congestive heart failure.
Any time the temperature reaches above 14 degrees Celsius, there is a risk. That’s the point
heartworm larvae require to be infective. Like the increasing range of ticks, warming
temperatures extend heartworm season, which usually begins in June but now goes all the way
to November.

Signs and effects of heartworm in your pet
1) Coughing
2) Shortness of breath
3) Inability to exercise

Heartworm is easy to avoid. Simply visit your vet and set up a personal parasite prevention
program for your animal. It can begin with an annual blood test to screen the dog for diseases,
including Lyme Disease, Anaplasmosis (a disease spread by ticks), Ehrlichia (a bacteria also
spread by ticks), and heartworm disease. Your veterinarian can also prescribe a monthly pill to
prevent heartworm.

Visit https://www.petsandticks.com/canadian-pet-tick-survey for more information, including tick
maps specific to your area.

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