Which symptom is typical for croup?

The seal bark cough is a hallmark symptom of croup, which is a respiratory condition commonly seen in young children. This distinctive cough resembles the sound of a seal barking and is typically caused by inflammation of the larynx and trachea, often following a viral infection. The unique sound of the cough occurs due to the narrowing of the airway, which is characteristic of croup.

Alongside this symptom, it's important to note that croup can also present with other signs such as stridor (a high-pitched wheezing sound during inhalation), which occurs due to obstruction or narrowing of the airway. Wheezing and hoarseness may also present in other respiratory conditions but are not specific to croup in the same way that the seal bark cough is. Understanding the classic presentation of croup, including the seal bark cough, is essential for accurately identifying and managing this condition.