Ontario’s Antivenom Depot

Leading the Way in Ontario

In 2003, WPSHC became Ontario’s first Antivenom Depot. We play a critical role in the safe and efficient distribution of antivenom across the province. Our depot is the central hub for antivenom used in the treatment of bites from the Eastern Massasauga Rattlesnake, the province’s only venomous snake with the ability to harm humans. West Parry Sound Health Centre works closely with medical facilities across Ontario to ensure that the necessary antivenom is available when needed and offers support and advise in the timely treatment of snakebites, using a medical protocol that was developed at WPSHC.

A close up of an Eastern Massasauga Rattlesnake, sunning itself on a lichen covered rock.  The snake is curled up, showing its head and scales in vivid detail, as it’s cautiously watches the photographer.

Ensuring access to antivenom across the province involves importing it from Mexico and carefully managing its distribution through a network of hospitals. In the event of a snakebite, you can have confidence that you will receive proper treatment in Ontario, and a full recovery is the normal outcome.

The Eastern Massasauga Rattlesnake is known for its distinctive rattle on its tail, which it uses as a signal when it feels threatened. It is a shy and non-aggressive snake. While its venom can be dangerous, bites are rarely fatal, thanks to effective treatment options. This species is an important part of our region’s ecosystem. Unfortunately, there is a lot of misunderstanding surrounding this species, and as a result it has often been persecuted. This has led to its designation as a Threatened Species, and they are legally protected within Canada. It is our hope that people who have been educated about rattlesnakes will choose to co-exist with them as they do with other wildlife. The continued presence of rattlesnakes reflects the health of natural habitats that we all cherish.

Co-existing Safely with Rattlesnakes

Snake encounters tend to increase during the summer months, as warmer temperatures make it ideal for snakes to be more active. This coincided with an increased population, and many seasonal activities along the shores of Georgian Bay. Coexisting with these snakes is possible however, and by taking a few simple precautions you can almost entirely eliminate the risk of being bitten.

The Eastern Massasauga Rattlesnake is a relatively shy species that prefers to avoid humans. Using its natural camouflage, it will often hide to stay undetected, only striking when it feels threatened. Many bites occur when people engage in risky behaviors, such as attempting to capture or handle, or photograph a rattlesnake. This not only poses a danger, but is also illegal. Violating the Species at Risk Act or Endangered Species Act can result in:

How Can I Avoid a Snakebite?

If on the rare chance you are bitten: