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MediumPaediatricsBronchiolitisukmlamrcp part 1prescribing safety assessment

A 4-month-old boy presents with a 2-day history of coryza and cough, which has now progressed to audible wheeze and increased work of breathing (subcostal recession, tracheal tug). His oxygen saturation is 93% in air. Examination reveals widespread crackles and expiratory wheeze. What is the most likely diagnosis?

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