Asthma exacerbations . 3: Pathogenesis.

  title={Asthma exacerbations . 3: Pathogenesis.},
  author={Peter A. B. Wark and Peter G Gibson},
  volume={61 10},
Asthma exacerbations are an exaggerated lower airway response to an environmental exposure. Respiratory virus infection is the most common environmental exposure to cause a severe asthma exacerbation. Airway inflammation is a key part of the lower airway response in asthma exacerbation, and occurs together with airflow obstruction and increased airway responsiveness. The patterns of airway inflammation differ according to the trigger factor responsible for the exacerbation. The reasons for the… CONTINUE READING