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Protracted bacterial bronchitis (PBB) is caused by a bacterial infection of the conducting airways in children who are otherwise healthy. It is the leading cause of chronic wet cough in young children and the most common reason for referrals to the Paediatric Respiratory Clinics in the UK.1 The cough has a negative effect on the quality of life of the affected child and their family.2 If PBB is left untreated, it has been postulated that ongoing endobronchial infection may be a risk factor in the development of bronchiectasis.3 The diagnosis is based on the presence of an isolated wet cough for >4 weeks, the …
Contributors Both authors equally contributed in designing the questionnaire, analysing the results and wrting the letter.
Competing interests None declared.
Provenance and peer review Not commissioned; externally peer reviewed.