The Value of Specific IgE to Peanut and Its Component Ara h 2 in the Diagnosis of Peanut Allergy

Neither the level of specific IgE to peanut nor to Ara h 2 was able to clearly distinguish patients with clinical relevant peanut allergy from those who were clinical tolerant in our population. As expected, peanut-specific IgG and IgG4 did not improve the diagnostic procedure.