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Any of several genera of paramyxoviruses that are similar to the viruses that cause influenza and are associated with various respiratory infections, especially in children.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
parainfluenzaInfectious disease A virus that causes URIs–up to 50% of croup and 10–15% of bronchiolitis, bronchitis, pneumonias in toddlers Clinical Rhinorrhea, cold-like Sx Risk factors Preschool children; by school age most children have been exposed to parainfluenza virus; most adults have antibodies against parainfluenza. Cf Influenza.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
parainfluenzaAn infection with a parainfluenza virus. This is usually no more than a common cold, but sometimes parainfluenza viruses cause serious illnesses featuring CROUP and PNEUMONIA.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005