The Immune System By sadieb0505 Feb 5, 2016 A person eats a food allergen A person eats a food allergen Period: Feb 5, 2016 to Feb 11, 2016 The day of the immune system Feb 6, 2016 An antibody attaches itself to cells once the food allergen is eaten Feb 7, 2016 The antibody detects harmful substances and will be prepared when the allergen enters the body again. Feb 8, 2016 The allergen re-enters the body Feb 9, 2016 The allergen attaches to antibodies and sends out signals Feb 10, 2016 The signals tell the body to send out histamine Feb 11, 2016 The histamine causes an allergic reaction
