|Title||Allergen Exposure: When Timing Is Everything.|
|Publication Type||Journal Article|
|Year of Publication||2016|
|Authors||Mahlakõiv, T, Artis, D|
|Date Published||2016 Dec 20|
It is known that young children exposed to allergens are prone to develop asthma later in life. In this issue of Immunity, de Kleer et al. (2016) identify IL-33 as a key player in the developing lung for sensitization to environmental allergens and airway hyperreactivity.