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A person eats a food allergen
A person eats a food allergen -
Period: to
The day of the immune system
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An antibody attaches itself to cells once the food allergen is eaten
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The antibody detects harmful substances and will be prepared when the allergen enters the body again.
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The allergen re-enters the body
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The allergen attaches to antibodies and sends out signals
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The signals tell the body to send out histamine
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The histamine causes an allergic reaction
