METHODS
Study participants for challenge studies in the ACC
The terms sensitization, sensitive, sensitivity, and reactivity are used
interchangeably and refer to a positive SPT response (>_5 mm) to an aeroallergen.
Allergic status or allergenicity refers to participants with a positive SPT response
and symptoms on exposure to the specific allergen. Four separate groups of
allergic participants were selected from a volunteer pool for the ACC studies