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Stages of Allergic Bronchopulmonary Aspergillosis*

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Stage	Description	Criteria
I	Acute	All diagnostic criteria present
II	Remission	Symptoms resolved for > 6 months
III	Relapse	Recurrence of ≥ 1 of the diagnostic criteria
IV	Refractory	Glucocorticoid-dependent or refractory to treatment
V	Fibrosis	Diffuse fibrosis and bronchiectasis
* Stages do not progress sequentially.
Data from Greenberger PA. Allergic Bronchopulmonary Aspergillosis. In Grammer LC, Greenberger PA (eds). Patterson's Allergic Diseases, 7th edition. Philadelphia, Wolters Kluwer, 2010.