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OpenStudy (anonymous):
what happens when a person who is allergic to ragweed encounters ragweed?
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OpenStudy (anonymous):
ragweed antigens bind ragweed and then bind mast cells which release histamine Allergies develop because of a Th2 response against the allergen.
OpenStudy (anonymous):
thank you so much .
OpenStudy (anonymous):
welcome mam :)
OpenStudy (anonymous):
:)
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