Autism-Open Access
Open Access

Respiratory Tract Infection

The body's respiratory system includes the nose, sinuses, mouth, throat (pharynx), voice box (larynx), windpipe (trachea), and lungs. Upper respiratory infections affect the parts of the respiratory tract that are higher on the body, including the nose, sinuses, and throat, while lower respiratory infections affect the airways and lungs.Types of upper respiratory infection include the common cold (head cold), the mild flu, tonsillitis, laryngitis, and sinus infection. Of the upper respiratory infection symptoms, the most common is a cough. Lung infections may also lead to a stuffy or runny nose, sore throat, sneezing, achy muscles, and headache.