Acute Pharyngitis (AP)
Pharyngitis is inflammation of the back of the throat, known as the pharynx. It typically results in a sore throat and fever. Other symptoms may include a runny nose, cough, headache, a hoarse voice. Symptoms usually last three to five days. Complications can include sinusitis and acute otitis media. Pharyngitis is typically a type of respiratory tract infection. Most cases are caused by a viral infection. Uncommon causes include other bacteria such as gonorrhea, fungus, irritants such as smoke, allergies, and gastroesophageal reflux disease.
The rabbit animal models of chronic pharyngitis were made by nebulizing ammonia water to the pharyngeal portion and injecting turpentine oil in submucosa to pharyngeal of rabbits. The result showed that the pathologic changes of pharyngeal portion of these rabbits were similar to chronic pharyngitis.