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Strep throat - Prevention

Alternative Names

Pharyngitis - streptococcal; Streptococcal pharyngitis

Prevention:

Most people with strep are contagious until they have been on antibiotics 24 - 48 hours. Thus, they should stay home from school, daycare, or work until they have been on antibiotics for at least a day.

Get a new toothbrush after you are no longer contagious, but before finishing the antibiotics. Otherwise the bacteria can live in the toothbrush and re-infect you when the antibiotics are done. Also, keep your family's toothbrushes and utensils separate, unless they have been washed.

If repeated cases of strep still occur in a family, you might check to see if someone is a strep carrier. Carriers have strep in their throats, but the bacteria do not make them sick. Sometimes, treating them can prevent others from getting strep throat.

Throat anatomy

Strep throat

Reviewed last on: 3/14/2009
Linda Vorvick, MD, Family Physician, Seattle Site Coordinator, Lecturer, Pathophysiology, MEDEX Northwest Division of Physician Assistant Studies, University of Washington School of Medicine; and Neil K. Kaneshiro, MD, MHA, Clinical Assistant Professor of Pediatrics, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

References

Alcaide ML, Bisno AL. Pharyngitis and epiglottitis. Infect Dis Clin North Am. 2007;21:449-469.

Del Mar C, Glasziou PP, Spinks A. Antibiotics for sore throat. Cochrane Database Syst Rev. 2006 Oct 18;(4):CD000023.

Institute for Clinical Systems Improvement. Health care guideline: Diagnosis and treatment of respiratory illness in children and adults. February 2008. Acessed November 9, 2008.

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