Croup is more common in which seasons?

• A. Fall and Winter
• B. Spring and Summer
• C. Summer only
• D. Winter only

Answer: (A)

Croup has a seasonal pattern driven by viral activity, especially parainfluenza viruses, which circulate more in the cooler months. cooler, indoor conditions in fall and winter facilitate transmission, so cases rise then. Because these viruses are less common in spring and summer, and the fall-to-winter period captures the typical peak, fall and winter is the best choice.