CXCL8 and cystic fibrosis: In agreement with these findings, BAL samples from clinically stable CF infants and young children who had been started on ivacaftor were collected through the Irish and the Australian programs Study of Host Immunity and Early Lung Disease (SHIELD CF) and Australian Respiratory Early Surveillance Team (AREST CF) and analyzed for IL-8, total and differential cell counts, and NE activity [67].