For Patients/Families

Croup
A condition resulting from narrowing of the larynx caused most commonly by infections and occasionally by allergy. This is almost always a disease of children and is characterized by resonant barking cough, hoarseness, and persistent stridor (whooping noise when breathing in). Viruses most commonly cause this infection and the associated fever. Narrowing of the airway can be life threatening and should be evaluated by a doctor.