RT Book, Section A1 File, Thomas M. 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 1122369021 T1 Infections of the Upper Respiratory Tract 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=1122369021 RD 2024/04/19 AB Upper respiratory tract infections are the most common infections and the most frequent reasons for office visits in the United States. Most upper respiratory infections are minor and self-limiting and do require specific antimicrobial therapy, but some (e.g., peritonsillar abscess [PTA], epiglottitis, invasive fungal sinusitis) may be life-threatening.1