Onset and persistence of respiratory/allergic symptoms in preschoolers: new insights from the <scp>PARIS</scp> birth cohort

Abstract

This study provides evidence for the existence of different respiratory/allergic phenotypes before school age. The fact that they differ in terms of sensitization and risk factors reinforces the plausibility of distinct phenotypes, potentially linked to irritation and infections for the transient phenotypes and to allergy for the persistent phenotypes.