All of the following are true of hypersensitivity except
a. it occurs in the presence of an a...
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All of the following are true of hypersensitivity except
a. it occurs in the presence of an antigenb. it is synonymous with allergyc. it occurs when an individual is exposed to an allergen for the first timed. it is due to an altered immune responsee. it requires previous exposure to an antigen
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