Aspergillosis is an acute pulmonary infection caused by the aspergillus fungus. Aspergillus can cause illness three ways: an allergic reaction in asthmatics, a colonization in scarred lung tissue, and an invasive infection with pneumonia, which can affect the heart, lungs, brain and kidneys.
Review Date 10/25/2020
Updated by: Jatin M. Vyas, MD, PhD, Assistant Professor in Medicine, Harvard Medical School; Assistant in Medicine, Division of Infectious Disease, Department of Medicine, Massachusetts General Hospital, Boston, MA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.