We remain open to provide care for your pets. We are following the direction of government and regulatory authorities and have implemented hospital and visit protocols to keep both you and our team safe. For regular updates on our hours and visit protocols, please follow our social media platforms.

Dog Heartworm Services

Heartworm Disease Tests

If a dog has heartworms, what symptoms should I look for?

Heartworm disease typically causes a cough, weight loss and poor exercise tolerance. This can also be true of many other diseases as well which may be more common, so testing for HWD is critical to making sure that this is not causing the clinical signs.

How does a dog get heartworms?

A dog gets heartworm disease from being bitten by a mosquito carrying the infective larvae which it has picked up after feeding on another canid which has heartworm disease.

What are the treatment options for heartworms?

It is much easier to prevent heartworm disease than to treat the clinical disease. Once clinical signs of heartworm develop due to infection, the damage to the heart and lungs can be irreparable. If an infection is identified early enough, injections which are painful and require hospitalization for several days can be done to clear the disease. We typically recommend preventive medication for dogs so that the larvae will not develop in the dog even if they are bitten by a mosquito carrying the disease.

Why is recovery for heartworm treatment so challenging?

Recovery after treating for heartworm disease is challenging as the adult heartworms can die and when pieces of the dead parasite are disseminated into the vascular system, this can cause severe reactions such as shock, or breathing issues or fever. Also, heartworm disease, may have caused serious damage to the heart muscle and lungs and result in congestive heart failure which is not reversible.


2018 Readers' Choice Awards Winner!

We are so happy to announce that we have won the 2018 Reader’s Choice Award in Mississauga in the category of Best Veterinary Hospitals! This award is very special to us as the voting is done by the community and our clients. We would like to thank every person who took the time to vote, or even took the time to share your experience with someone else.

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COVID-19: Additional measures we are taking

Dear Clients,

Due to the close contact that our work requires, we have taken additional measures to protect you and our team while providing care for your furry family members.

The following changes are effective as of Wednesday, March 18, 2020:

1. We are currently operating a "closed waiting room" policy to protect our clients and staff. When you arrive, please remain in your vehicle and use your cell phone to call us at 905-855-2100. We will bring your pet into the hospital for an examination with the veterinarian. The veterinarian will then call you to discuss our recommended treatment plan. After your appointment, a technician will return your pet to your car and take care of any needed medications and payment.

2. We are continuing to accept appointments for urgent or sick pets, as well as time-sensitive puppy/kitten vaccinations. All other services will be scheduled for a later time. However, if you're unsure whether your pet needs medical attention, please call us to discuss your situation.

3. If you are ordering food or medications, please allow 2-4 business days as our suppliers are dealing with increased demand and are trying to fill orders as quickly as possible. We will advise you as soon as your order arrives. Please call us when you arrive to pick up your order, but do not enter the hospital. Our staff will bring your order to your car. At this time, we are limiting food purchases to 2 bags or 2 cases per client. You can also use our online store and have your food delivered directly to your home. To sign up for the Online Store, visit our website.

4. For the time being, we are not accepting cash as payment. Credit cards and debit card payments are still available.

5. Following the recommendations of our government and medical experts, we are doing our best to practice social distancing within the constraints of our jobs. We have taken these measures to avoid both contracting and facilitating the spread of this disease.

Thank you for helping us be diligent for everyone's safety. As we have heard from all levels of government, the situation is fluid, and any updates will be provided as changes occur.

- Your dedicated team at Clarkson Village Animal Hospital