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ShareUpper respiratory infections, commonly referred to the acronym URI, is the illness caused by an acute infection which involves the upper respiratory tract: nose, sinuses, pharynx, larynx, or bronchi.
It is the most common cause of days missed from work or school and one of the most common reasons for a medical visit.
It is estimated that the average adult has from two to three URI-type illnesses per year and the average child six to 10.
In the United States, this represents approximately one billion acute upper respiratory illnesses annually.
Recent studies show that up to 98% of all cases are viral in nature.
For more information about the topic Upper respiratory tract infection, read the full article at Wikipedia.org, or see the following related articles:
Human parainfluenza viruses — Human parainfluenza viruses (HPIVs) are a group of four distinct serotypes of single-stranded RNA viruses belonging to the paramyxovirus family. They ... > read more
Diphtheria — Diphtheria is an upper respiratory tract illness characterized by sore throat, low-grade fever, and an adherent membrane (a pseudomembrane) on the ... > read more
Common cold — Acute nasopharyngitis, often known as the common cold, is a mild viral infectious disease of the the upper respiratory system (nose and throat). ... > read more
Laryngitis — Laryngitis is an inflammation of the larynx. It causes hoarse voice or the complete loss of the voice because of irritation to the vocal folds (vocal ... > read more
Infectious mononucleosis — Infectious mononucleosis (also known in North America as mono, the kissing disease, or Pfeiffer's disease, and more commonly known as glandular fever ... > read moreEditor's Note: This article is not intended to provide medical advice, diagnosis or treatment.
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