tracheitis (MONDO_0005990, a Monarch Disease Ontology identifier) is a tracheal disease which involves bacterial infection of the trachea often caused by Staphylococcus aureus and streptococci that follows a recent viral upper respiratory infection. The symptoms include barking croup cough, loud squeaking noise while breathing, scratchy feeling in the throat, high fever, and production of large amounts of pus-filled secretions. Also known as: acute tracheitis, chronic tracheitis, inflammation of tracheal mucosa, tracheal Inflammation, tracheal mucosa inflammation.