Sampson et al. 1 studied patients who were allergic to cereals and grass pollen with skin prick tests. Commercial allergens (Greer Laboratories, NC, USA) were used for the testing. Wheat allergy was suspected in 126 patients; the skin prick test was positive (≥ 3 mm) in 65 %. Immediate challenge testing was positive in only 32 %, i.e. the majority of the skin prick test reactions for wheat were false positive results. Patients with grass allergy who had reacted negatively to cereals in challenge testing often developed only slightly positive responses to cereals.
Primary/Secondary Keywords