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Definition of Parainfluenza

Parainfluenza: A disease due to an acute respiratory infection caused by a parainfluenza virus. Parainfluenza usually occurs in children. The clinical picture can range from a relatively mild influenza-like illness to bronchitis, croup, and pneumonia.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=22714
Last Editorial Review: 3/19/2012

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