Lyme Disease Alert: Black-Legged Ticks Expand Across Chaudière-Appalaches

For outdoor enthusiasts and residents of Quebec, a new health warning has emerged. Recent data from the Institut national de santé publique du Québec (INSPQ) indicates a worrying expansion of the territory inhabited by black-legged ticks in the Chaudière-Appalaches region.

The spread of these ticks is more than just a biological shift; it represents an increased risk of Lyme disease for thousands of people. Understanding where these ticks are and how to protect yourself is now essential for anyone spending time in nature.

The Expanding Danger Zone

The endemic zone for Lyme disease has grown significantly. Municipalities such as Saint-Georges, Notre-Dame-des-Pins, Beauceville, Saint-Séverin, Saint-Sylvestre, Saint-Apollinaire, and Saint-Antoine-de-Tilly are now officially part of the high-risk areas. In total, 53 municipalities within the Chaudière-Appalaches region are now flagged as endemic zones where ticks are present or human cases of Lyme disease have been recorded.

However, health experts warn that you cannot rely solely on maps. According to the INSPQ, the risk is not uniform across the zone, and ticks can be found even outside these designated areas. This is primarily due to migratory birds, which can transport ticks over long distances, bringing the risk to previously unaffected regions.

How to Protect Yourself from Tick Bites

Prevention is the most effective tool against Lyme disease. Whether you are hiking in the park or gardening in your backyard, the Public Health Agency of Canada and local authorities recommend the following precautions:

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• Dress Strategically: Wear long-sleeved shirts and long trousers in light colours, which makes it easier to spot ticks crawling on your clothes.
• Footwear: Always wear closed-toe shoes when walking through wooded or grassy areas.
• Use Repellent: Apply a reliable insect repellent containing DEET or Icaridin to exposed skin.
• Stay on the Path: Avoid walking through tall grass or dense brush; stick to cleared trails whenever possible.
• Post-Activity Check: Perform a thorough tick check on your body and pets immediately after returning indoors.

Municipalities Currently in the Endemic Zone

If you live in or visit any of the following areas in Chaudière-Appalaches, be extra vigilant:

• Saint-Victor, Saint-Alfred, Beauceville, Saint-Jules, Tring-Jonction
• Saint-Frédéric, Saint-Séverin, Saint-Théophile, Saint-Gédéon-de-Beauce
• Saint-Hilaire-de-Dorset, Courcelles–Saint-Évariste, La Guadeloupe, Saint-Honoré-de-Shenley
• Saint-Martin, Saint-René, Saint-Côme–Linière, Saint-Georges, Lac-Poulin
• Saint-Benoît-Labre, Saint-Éphrem-de-Beauce, Notre-Dame-des-Pins, Beaulac-Garthby
• Disraeli, Saint-Jacques-le-Majeur-de-Wolfestown, Saint-Fortunat, Saint-Julien, Irlande
• Saint-Joseph-de-Coleraine, Sainte-Praxède, Adstock, Sainte-Clotilde-de-Beauce, Thetford Mines
• Saint-Adrien-d’Irlande, Saint-Jean-de-Brébeuf, Kinnear’s Mills, East Broughton, Sacré-Cœur-de-Jésus
• Saint-Pierre-de-Broughton, Saint-Jacques-de-Leeds, Saint-Sylvestre, Sainte-Agathe-de-Lotbinière
• Dosquet, Saint-Flavien, Laurier-Station, Saint-Janvier-de-Joly, Val-Alain
• Saint-Édouard-de-Lotbinière, Notre-Dame-du-Sacré-Cœur-d’Issoudun, Saint-Apollinaire, Saint-Antoine-de-Tilly, Sainte-Croix, Lotbinière, Leclercville.

Stay informed and stay safe. If you discover a tick attached to your skin or develop a rash (often looking like a bullseye) and fever, consult a healthcare professional immediately.