Trophallergen Prick Tests (PT) : Influence of Food Sample Shelf Life on the Reproducibility of PT Results

"Several foods may be tested for the same participant depending on the number of food allergies the patient has. PT are performed using the prick-to-prick method with lancets, in a single session per patient, using fresh and preserved native foods. Simultaneously, a positive control and a negative control are performed. The PT are performed and read by nursing or medical staff trained in the technique.~Participants' clinical follow-up is performed continuously for 30 minutes from the performance of the prick-tests and under the responsibility of the allergologist doctor, whose presence is mandatory during the performance of these tests.~For meat, fruit, vegetable, leguminous plant, milk, seafood and fish tests will be performed with fresh products and with products preserved for 3 months as well as with products preserved for 6 months \[-15 days; +15 days\].~For dry foods (nuts and peanuts), tests will be performed with products harvested over 3 separate and consecutive seasons."