Why Do Some Newcomers Develop Allergies After They Arrive in Canada?

Building a new life in Canada can come with unexpected challenges, including developing allergies that may not have been an issue back home. Research indicates that the longer newcomers live in Canada, the more likely they are to experience allergies.

A study published in an immunology journal found that approximately 14% of recent newcomers to Canada reported non-food allergies. This number increases to around 24% for those who have been here for a decade or more.

Researchers believe that a combination of environmental and lifestyle changes may contribute to this trend. Factors such as differences in air quality, diet, sanitation, and how the immune system adapts to a new environment may play a role.

“We’re seeing a pattern that suggests the Canadian environment significantly influences allergy development,” says Dr. Harold Kim, an allergist and immunologist. “If you have not experienced allergies before, it’s crucial to recognize the signs early and consult a doctor if something feels off.”

Watch for These Symptoms.

Allergy symptoms can vary widely, from sneezing and itchy eyes during allergy season to hives, swelling, or serious reactions after consuming certain foods. In some instances, reactions can occur very quickly. Severe, potentially life-threatening reactions, known as anaphylaxis, require immediate treatment.

What to Do If Symptoms Appear.

If you or a family member develops new or worsening symptoms after arriving in Canada, do not ignore them. A family doctor can evaluate your symptoms or refer you to an allergist. Obtaining a diagnosis can help you manage your condition and prepare for a serious reaction if it occurs. 

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