heliox, and, rarely, intubation. In this article, the current diagnostic and management strategies for viral croup are summarized.

Viral croup often presents similarly to an upper respiratory infection, with 12-72 h of low-grade fever and coryza. Narrowing of the larynx leads to stridor, increased respiratory rate, respiratory ...

rch.org.au The Omicron variant of SARS-CoV-2 has been linked to upper airway manifestations, including laryngotracheobronchitis, or croup.1–3 Croup from any cause is a common reason for hospital ...

Further deterioration may require additional respiratory support. There is growing clinical evidence that helium–oxygen gas mixtures (‘heliox’) may reduce the work of breathing, improve oxygenation, ...