open mouth, normal and tonsillitis bacterial and viral. angina, pharyngitis and tonsillitis. infection of tonsils

anatomy angina antibiotics bacteria bacterial bacterium care coughing disease fever gland health healthy human illness illustration infection inflamed inflammation laryngitis lips lymphatic medical medicine mouth open oral pain people pharyngitis redness respiratory strep streptococcus swollen symptom teeth throat tongue tonsil tonsillitis uvula vector viral virus