Ask the Doctor: What is croup?

Question: What is croup? Answer: We have found that many parents are confused about croup. Croup is a viral illness caused by many of the same viruses that cause the common cold; including parainfluenza viruses, RSV, and adenovirus, among others. Even influenza or “the flu” can cause croup. The key difference is where the infection … Continue reading “Ask the Doctor: What is croup?”

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