تماشای ویدئو التهاب دستگاه تنفسی فوقانی از آی-ویدئو

■Upper respiratory infections are one of the most common reasons for doctor visits. ■Upper respiratory infections are the most common illness resulting in missed work or school. ■Upper respiratory infections can happen at any time, but are most common in the fall and winter. ■The vast majority of upper respiratory infections are caused by viruses and are self-limited. ■Symptoms of upper respiratory infection include◦cough, ◦sneezing, ◦nasal discharge, ◦nasal congestion, ◦runny nose, ◦fever, ◦s