Our Upper respiratory infection Main Article provides a comprehensive look at the who, what, when and how of Upper respiratory infection
Definition of Upper respiratory infection
Upper respiratory infection: An infection of the upper part of the respiratory system which is above the lungs. An upper respiratory infection can be due to any number of viral or bacterial infections. These infections may affect the throat (pharyngitis), nasopharynx (nasopharyngitis), sinuses (sinusitis), larynx (laryngitis), trachea (tracheitis) or bronchi (bronchitis). Upper respiratory infection is commonly abbreviated URI. Last Editorial Review: 6/14/2012 Back to MedTerms online medical dictionary A-Z List 
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