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Additional Information From NIAID

Common Cold

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Sneezing, runny nose, scratchy throat—everyone knows the first signs of a cold, probably the most common illness known. According to the Centers for Diseases Control and Prevention (CDC), 22 million school days are lost annually in the United States due to the common cold.

Understanding the Common Cold

Last Updated August 17, 2011

Last Reviewed February 11, 2011