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An upper respiratory tract infection (URTI) is an illness caused by an acute infection, which involves the upper respiratory tract, including the nose, sinuses, pharynx, larynx or trachea. [3][4] This commonly includes nasal obstruction, sore throat, tonsillitis, pharyngitis, laryngitis, sinusitis, otitis media, and the common cold. [5]: 28 ...
Respiratory tract infections (RTIs) are infectious diseases involving the lower or upper respiratory tract. [1] An infection of this type usually is further classified as an upper respiratory tract infection (URI or URTI) or a lower respiratory tract infection (LRI or LRTI). Lower respiratory infections, such as pneumonia, tend to be far more ...
Pharyngitis is a type of upper respiratory tract infection. [7] Most cases are caused by a viral infection. [2] Strep throat, a bacterial infection, is the cause in about 25% of children and 10% of adults. [2] Uncommon causes include other bacteria such as gonococcus, fungi, irritants such as smoke, allergies, and gastroesophageal reflux disease.
2–3 per year (adults) 6–8 per year (children) [13] The common cold or the cold is a viral infectious disease of the upper respiratory tract that primarily affects the respiratory mucosa of the nose, throat, sinuses, and larynx. [6][8] Signs and symptoms may appear in as little as two days after exposure to the virus. [6]
Pneumonia frequently starts as an upper respiratory tract infection that moves into the lower respiratory tract. [54] It is a type of pneumonitis (lung inflammation). [ 55 ] The normal flora of the upper airway give protection by competing with pathogens for nutrients.
Sinusitis (or rhinosinusitis) is defined as an inflammation of the mucous membrane that lines the paranasal sinuses and is classified chronologically into several categories: [22] Acute sinusitis – A new infection that may last up to four weeks and can be subdivided symptomatically into severe and nonsevere.
Acute cases usually occur as part of a viral upper respiratory tract infection, [1] other infections and trauma such as from coughing are other causes. [1] Chronic cases may occur due to smoking, tuberculosis, allergies, acid reflux, rheumatoid arthritis, or sarcoidosis. [1] [3] The underlying mechanism involves irritation of the vocal cords. [2]
Doctors said that the two other most commonly reported symptoms are a tie between fatigue and body aches. Some patients also reported having a runny nose, while others were congested; some ...