Response [Correspondence]

We thank Sacco et al1 for their interest in our study on children with protracted bacterial bronchitis (PBB), which described high PBB recurrence rates.2 Further, at 2-year follow-up, those diagnosed with bronchiectasis were significantly more likely to have had recurrent episodes (> 3 per year) and Haemophilus influenzae in their BAL at initial diagnosis.2 We agree with Sacco et al's1 suggestion that antibiotic adherence should be closely monitored and that the presence of biofilm in the lower airways of these children is likely important...