What is bronchiectasis?Bronchiectasis Bronchiectasis is a condition where the airway (bronchi) in the lungs become widened and damaged. In healthy lungs a small amount of mucus is secreted into the bronchi. This acts as a protective lining, trapping dust and bacteria that have been breathed in. To prevent a build-up of this mucus, the bronchi are lined with microscopic hairs, …

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