Influenza A-Associated Epiglottitis and Compensatory Pursed Lip Breathing in an Infant.

The last 3 decades have seen a shift in the epidemiology of epiglottitis. Epiglottitis was once most commonly associated with Haemophilus influenzae type B. However, with the implementation of the H. influenzae type B vaccine in 1985, the incidence has drastically declined. There are now new emerging pathogens-bacteria, viruses, and fungi-causing epiglottitis. Here, we report the first case of epiglottitis secondary to influenza A in a former full-term, vaccinated infant who presented with cough, fever, stridor, pursed lip breathing, and progressive respiratory distress and eventual respiratory failure. This case highlights the presentation and clinical course of epiglottitis and describes a rare clinical feature, pursed lip breathing, in an infant.