Upper Respiratory Infection

Several upper respiratory infections require clinical care by a physician or other license health care professional. Listed in the directory below are some of the conditions, for which we have provided a brief overview.

Common Cold

Caused by a virus that inflames the membranes in the lining of the nose and throat, colds can be the result of more than 200 different viruses. However, among all of the cold viruses, the rhinoviruses and the coronaviruses cause the majority of colds.


Influenza (or flu) is a highly contagious viral respiratory tract infection. It usually starts quickly, with fever, muscle aches, sore throat, and a dry cough. 

Pharyngitis / Tonsillitis

Pharyngitis / Tonsillitis is an infection of the throat that causes inflammation. This type of infection is generally spread by close contact with other individuals.


Sinusitis (often called a sinus infection) is an inflammation, or swelling, of the tissue lining the sinuses. Sometimes, after a cold or allergy episode, sinus passages become blocked and filled with fluid.

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