2.2 Serum samples
This study used serum from 39 patients [median age 8 years (IQR 6–10
years)], from a previous study, with persistent CM allergy before oral
immunotherapy.4,7 These patients were required to have
retained their milk allergy over age 5 with the threshold dose less than
5 mL of CM confirmed by an oral food challenge test, and detectable
specific IgE to CM and whole CN by ImmunoCAP®.