Upper respiratory infections can affect your nose, sinuses, throat (pharynx) and voice box (larynx). An upper respiratory infection (URI) is a viral or bacterial illness in the upper part of your respiratory system. This includes your nose, sinuses and throat.

Context Explanation

An acute upper respiratory infection (URI) is a contagious infection of the upper respiratory tract. Learn about URI causes, treatment, and prevention. An upper respiratory infection (URI), also known as the common cold, is one of the most common illnesses, leading to more primary care provider visits and absences from school and work than any other illness every year. Young children, older adults, and those with compromised immune systems are more at risk for complications from URIs.

Insight Material

An upper respiratory infection (URI) affects the nose, throat, or sinuses.... Upper respiratory infections (URIs) and lower respiratory infections (LRIs) are both caused by viruses or bacteria that enter the respiratory system. URIs affect the upper part of the respiratory system, including the sinuses and throat, while LRIs affect the airways and lungs. The table below summarizes the differences between URIs and LRIs. A viral upper respiratory infection, or URI, is a condition that affects your upper air passages.

Final Conclusion

The most well-known type is the common cold. An upper respiratory infection (URI) is a contagious infection of your upper respiratory tract (including your nasal passages, sinuses and throat), and is caused by bacteria or a virus. Upper respiratory tract infection (URI), or ‘common cold’, is the most frequent illness in humans. The main symptoms of URI are nasal stuffiness and discharge, sneezing, sore throat, and cough. The presence of low-grade fever is variable and more common in children than in adults.