TY - CHAP M1 - Book, Section TI - Chapter 31. Croup A1 - Wright, Robert Bruce A1 - Klassen, Terry A2 - Shah, Samir S. PY - 2009 T2 - Pediatric Practice: Infectious Disease AB - Croup (acute laryngotracheobronchitis) is a respiratory illness of childhood and one of the most common causes of upper airway obstruction in children. Physicians should be comfortable with the disease as it will be one of the most frequent presentations of acute stridor in children to the office or emergency setting. In the United States, it is estimated to affect around 3% of the population and is most common in children aged 6 months to 6 years with the largest number of cases seen in those between 1 and 2 years of age.1 Reinfection and recurrence of croup is common. The ratio of males to females with croup is 1.43:1.1 There are two seasonal peaks of croup in North America, the first in autumn and the second in late winter.1 Because of biennial increases in viral epidemics, the number of croup cases is 50% higher in odd-numbered years when compared to even-numbered years.2 SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/03/29 UR - accesspediatrics.mhmedical.com/content.aspx?aid=6905596 ER -