Below is an instruction from Human. Write a response.
    ### Instruction:
    Who is at risk for Bronchiectasis? ?
    ### Response:
    People who have conditions that damage the lungs or increase the risk of lung infections are at risk for bronchiectasis. Such conditions include:
                
Cystic fibrosis. This disease leads to almost half of the cases of bronchiectasis in the United States.
    