Viral-induced wheeze — RACP Paediatrics MCQ

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EasyRespiratoryViral-induced wheezeRACP Paediatrics

A 10-month-old has a 3rd episode of wheeze associated with viral upper respiratory tract infections. Between episodes, the child is completely well with no interval symptoms. There is no family history of atopy. What is the most likely diagnosis?

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Correct answer: E — Viral-induced wheeze

Recurrent episodic wheeze triggered exclusively by viral infections in infants <2 years, with complete resolution between episodes and no atopy, is viral-induced wheeze (episodic viral wheeze). This is distinct from multi-trigger wheeze (which has interval symptoms) and carries a better prognosis. Most children outgrow it.

Reference: RCH Melbourne – 2023 – Preschool Asthma CPG; Australian Asthma Handbook – 2022