RT Book, Section A1 Bell, Matthew C. A1 Busse, William W. A2 Grippi, Michael A. A2 Elias, Jack A. A2 Fishman, Jay A. A2 Kotloff, Robert M. A2 Pack, Allan I. A2 Senior, Robert M. A2 Siegel, Mark D. SR Print(0) ID 1122359199 T1 The Biology of Asthma T2 Fishman's Pulmonary Diseases and Disorders, 5e YR 2015 FD 2015 PB McGraw-Hill Education PP New York, NY SN 978-0-07-179672-9 LK accessmedicine.mhmedical.com/content.aspx?aid=1122359199 RD 2024/04/25 AB Asthma is characterized by recurrent attacks of breathlessness and wheezing, which vary in severity and frequency from person to person.1 More than 18 million adults and 7 million children are affected in the United States alone, making asthma one of the most common chronic diseases in this country.2 Attempts to elucidate the underlying pathophysiology of the disease have led to the realization that asthma truly is a protean disease with various cell types and mechanisms playing variable but important roles in each patient. This degree of mechanistic variation explains the numerous phenotypes of this disease as well as the differences in response to treatment.