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Strep throat

Open mouth showing throat, uvula, tonsils, and tongue, with detail of healthy tonsils and strep throat.

Strep throat is a bacterial infection that causes a sudden, severe sore throat and fever. Symptoms may include red, swollen tonsils that may be covered with white or yellow patches.

Current as of: November 29, 2023

Author: Healthwise Staff
Clinical Review Board
All Healthwise education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.

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