News & Events

Ticks and Lyme Disease

Pets are cherished family members and keeping them safe and healthy is important. Black-legged ticks are becoming more prevalent in Ontario. Pets can come in contact with ticks during walks in grassy or wooded areas. Ticks are active in warmer weather so it is important to check your pet for ticks during the spring and summer months.

What is a Tick?

A tick is a small, blood sucking parasite closely related to a spider. Ticks cannot fly and move very slowly. They can be as small as the head of a pin and therefore difficult to detect on your pet. Ticks attach by inserting their mouth into the skin causing a painless bite. As the tick feeds their body gradually enlarges or becomes engorged, making them more visible.

There are many varieties of ticks and some can carry disease. One such tick is the black-legged tick which can carry Lyme disease, a disease known to cause serious harm to humans and animals. Not all black-legged ticks carry the bacteria that cause Lyme disease and the majority of bites will not result in disease.

Protecting Your Pet from Ticks and Lyme Disease

The best way to protect your pet is to avoid areas known to have high tick populations. Speak to your veterinarian about parasite prevention. In addition, walking your dog on a 6 foot leash in heavily wooded or natural areas will minimize contact with ticks.

Remember to check your pet for ticks during camping trips or after walks in the woods or areas with thick vegetation or tall grass. Early detection and prompt removal of the tick is key. Experts report that it can take up to 24 hours for a tick to transmit Lyme disease after the initial bite occurs. Ticks become easier to detect as they become engorged so check your pet frequently over the next several days.

Guide to Checking Your Pet for Ticks

Visually and physically examine your pet. Spread the fur and slowly run your hands over your pet's entire body, paying attention to the head, ears, neck and feet, feeling for any unusual lumps or bumps. Remember ticks may be very difficult to detect so check repeatedly and carefully.

Removal of a Tick

Ticks should be removed carefully. It is recommended that you wear protective gloves to avoid contact with the tick. Using fine tipped tweezers, grasp the tick as close to the skin as possible. Do not put anything on the tick and do not squeeze the tick as this may cause it to accidentally introduce Lyme disease. Pull straight out, gently but firmly. Place the tick in a screw top bottle such as a pill vial or a glass bottle. Cleanse the site with rubbing alcohol and/or soap and water. Take the tick to your veterinarian and request that it be tested.


What is the Risk in Mississauga?

Peel Public Health has a collection program and does tick surveillance in areas where black-legged ticks have been found. To-date there is no evidence of established populations of black-legged ticks in Mississauga. In 2017, 154 ticks were submitted to the Region of Peel for testing. Twenty-three of these ticks were black-legged ticks, only one was from Mississauga. There were eight confirmed cases of Lyme Disease but only one of those was acquired in Peel Region.

Health experts report that tick populations are on the rise and you do not have to be in a high-risk area to come into contact with ticks and Lyme disease. Environmental factors such as warmer climates and migratory birds can also affect tick populations. It is important to check with your veterinarian and the Peel Public Health for information on current tick populations and risk factors in your area. For more information on high risk areas of black-legged ticks in Ontario visit Public Health Ontario.

Reporting of Ticks

Lyme disease is a reportable disease in Ontario and Peel Public Health reports on Lyme disease in Peel. As of June 2016 there were no confirmed human cases of Lyme disease in Peel.

  • If you find a tick on your pet take the tick to your veterinarian and request that it be tested.
  • If you find a tick on yourself or a family member, take the tick to Peel Public Health for testing.

More information on Lyme disease visit Peel Public Health.

As dog owners, we should set a good example by being courteous and abiding our Animal Care and Control By-law by leashing, licensing and picking up after our dogs. This will make our communities safer places to walk, cycle and play in.

Did You Know?
Dogs must be leashed whenever they are not at home, such as in public places, including City parks. Your dog’s leash should not exceed 1.8 metres (6 feet) in length.  

A leash keeps your dog safe from dangers such as: 

  • Getting lost
  • Unfriendly dogs and wildlife such as coyotes
  • Coming into contact with dead or diseased wildlife
  • Eating things like poison, animal poop or drinking from contaminated puddles
  • Running into traffic or getting hit by a car

A leash benefits you, your dog and the community by: 

  • Preventing  your dog from scaring or jumping on children, other people or pets
  • Preventing lawsuits, vet bills and By-law tickets

Leash Safety Tips

  • Check that your dog’s collar and leash is properly fitted and in good repair
  • Use a 1.8 metre (6 feet) leash, retractable leashes do not allow for proper control
  • Train your dog to walk on a leash and if needed, seek help from a dog trainer
  • Use caution when meeting other dogs, as leashes can get tangled

Leash-Free Zones
Mississauga has eight leash-free zones for you and your dog to enjoy. For a list of leash-free zones in Mississauga:

Scoop that Poop
There is no excuse for not picking up after your dog. It is not only the law; it is the environmentally responsible thing to do. 

  • There are an estimated 60,000 dogs in Mississauga.  They produce about 9 metric tons (9.9 tons) of dog waste per day and 3,300 metric tons (3,630 tons) a year.
  • Dog waste is not fertilizer; it does not break down quickly like cow manure.  Dog waste takes months to break down, is highly acidic and can harm the soil and kill grass and plants
  • Dog waste contains e-coli bacteria and/or parasites that are harmful to people.   Ringworm, roundworm, e-coli, salmonella and giardia are commonly found in dog feces and are easily transferable by contact to humans and dogs. 
  • Dog waste left on the ground contaminates our water.  When it rains, dog waste bacteria soaks into groundwater and is carried by surface water to storm sewers which flow to nearby streams and watersheds. This can impact water quality and make swimming areas unsafe. 

Be neighbourly and considerate when walking your dog:

  • Respect private property
  • Avoid areas where children play
  • Carry spare poop bags with you
  • Carry a flashlight at night
  • Use scooping tools designed for mobility issues
  • Place dog waste in the garbage and not in the recycling bin. Or use one of the City’s designated in-ground waste containers.