" Strep throat is a common infection among school aged children ages 5-15, but it is not limited to children. Strep Throat, or its technical name Streptococcal Pharyngitis, is an infection that affects the tonsils and throat. Main symptoms include a sore throat, swollen tonsils and lymph nodes and a fever. If you experience any of these symptoms, a doctor can perform a throat culture or rapid antigen test to diagnose you. Treatment for strep is ...