Which virus is the most common cause of bronchiolitis in infants?
Answer and explanation
Correct answer: C. Respiratory syncytial virus
- Step 1: Respiratory syncytial virus infects the small airways of infants in winter. Step 2. It causes wheezing and respiratory distress. Answer: respiratory syncytial virus. Why not the others: other viruses can cause bronchiolitis, but less often.
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