What characterizes croup in children?

Croup is primarily characterized by a distinct barking cough and usually presents with a low-grade fever. The barking cough is often described as resembling the sound of a seal and occurs due to inflammation in the upper airways, typically caused by a viral infection. This condition is common in young children, especially between the ages of six months and three years, and the combination of a barking cough and low-grade fever helps distinguish it from other respiratory conditions.

While stridor and breathing difficulty can occur in more severe cases of croup, they are not the defining characteristics in all instances of the illness. High fever and chills, as well as severe vomiting, are not typical features of croup. Identifying the classic symptoms, especially the barking cough, is crucial in recognizing and managing the condition effectively.