Definition of Upper respiratory infection

Reviewed on 3/29/2021

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.

QUESTION

COPD (chronic obstructive pulmonary disease) is the same as adult-onset asthma. See Answer

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