Tonsillitis is an infection of the tonsils. The tonsils are two small glands found at the back of the throat behind the tongue. The function of these glands is not entirely clear, but research suggests that they help to fight infections. It can be caused by either a virus or bacteria, although most cases are viral.The main symptom of tonsillitis is a sore throat and may also be associated with coughing, headaches and a fever. Tonsillitis can spread from person to person through hand contact and through airborne droplets from infected persons.Children and adolescents aged 5-15 years old are most likely to get tonsillitis, but it can affect anyone. It resolves spontaneously or may require antibiotics and tonsillectomy is the final step in the treatment.
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