The most common causes of<unk>  are adenovirus, rhinovirus, influenza, coronavirus, and respiratory syncytial virus. It can also be caused by epstein-barr virus, herpes simplex virus, cytomegalovirus, or HIV. The second most common causes are bacterial which may be caused by group A streptococcal bacteria, resulting in strep throat..  Sometimes,<unk>  is caused by a superinfection of spirochaeta and treponema, in this case called Vincent's angina or Plaut-Vincent angina.
Tonsillitis causes
Croup causes
Tonsilitis causes
Pharyngitis causes
Epiglottitis causes
Peritonsillar abscess causes
Rhinosinusitis causes
Mastoiditis causes