askscience

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I was a daycare teacher for 3 years and still don't understand the rise of nut allergies. Also, why are parents less likely to expose their children to other children when it's clear that the immune system builds by coming in contact with others.

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I was a daycare teacher for 3 years and still don't understand the rise of nut allergies. Also, why are parents less likely to expose their children to other children when it's clear that the immune system builds by coming in contact with others.	504