Signs of infection
Signs of infection

The name 'strep' throat comes from the type of bacteria that is known to cause the infection, Group A Streptococcus (GAS). The infection is identified by the presence of certain specific symptoms. These symptoms vary depending upon the causative agent. A bacterial infection produces signs of throat redness and swollen uvula in the mouth, whereas a viral infection leads to swollen tonsils. The symptoms may include irritation, redness, and the build-up of pus in the back of the throat in some cases.

Throat and larynx picture
Throat and larynx picture

The voice box is present in front of the neck and contains the vocal cords. The larynx is responsible for sound production and swallowing. It is also the entrance to the windpipe, and plays a critical role in the airway.

Close up of man suffering with sore throat
Close up of man suffering with sore throat

This is a picture of a man who is suffering from sore throat. A sore throat is pain, scratchiness or irritation of the throat. The most common cause of sore throat (pharyngitis) is a viral infection, such as a cold or flu.

Normal tonsils vs inflamed tonsils
Normal tonsils vs inflamed tonsils

Tonsillitis is defined as inflammation of the tonsils due to bacterial or viral infection. Typical symptoms include sore throat, swollen tonsils, difficulty swallowing, fever, and swollen glands in the neck.