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Wellington Children's Hospital

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Croup is a viral infection of the voice box (larynx) and windpipe (trachea).
It usually affects children up to the age of 5 years.
Croup lasts 3-4 days, the cough then changes to sound moist and productive of phlegm.
This cough may last for 2-weeks.

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This page was last updated at 1:15PM on October 2, 2017.