
Why do we have allergies?
But Why: A Podcast for Curious Kids
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The Effects of Dander on the Immune System
Dander is the dead skin cells that fall off dogs and cats. People can also be allergic to their pets saliva and urine, less politely known as spit and pee. There's no such thing as a completely hypoallergenic cat or dog because all mammals shed skin cells.
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