Streptococcal Pharyngitis

Strep throat

Streptococcal pharyngitis (sore throat), or "strep throat," is an infection of the throat and tonsils caused by the bacterium Streptococcus pyogenes, also known as Group A Streptococcus (GAS).

Streptococcal pharyngitis fact sheet, P-42092

Sore throat – Centers for Disease Control and Prevention