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The Primary Immunodeficiency Primer

Your helpful introductory guide to Primary Immunodeficiency (PI) and Inborn Errors of Immunity (IEI).

Need to know more about primary immunodeficiency?
Start here.

We understand how overwhelming life with PI can be. It is physically, mentally, and emotionally exhausting. But you are not alone.

ImmUnity Canada provides education, support, advocacy, community-building, and research to help you live well.

What is Primary Immunodeficiency?

There’s a lot of scientific lingo when it comes to PI, but we break it down and make it easy to understand. If you’re just learning about PI, read this first.

An introduction to the immune system

This is an overview of the immune system, its organs and cells. Read this section to get some basics, and then bookmark it for reference later!