Risk factors
By Mayo Clinic staffSeveral factors can increase your risk of strep throat infection:
- Young age. Strep throat occurs most commonly in children between the ages of 5 and 15.
- Time of year. Although strep throat can occur anytime of the year, it tends to circulate in late fall and early spring. Strep bacteria flourish wherever groups of people are in close contact. That's why the infection spreads easily among family members, in schools and in child care settings.
References
- Strep throat. National Institute of Allergy and Infectious Disease. http://www.niaid.nih.gov/topics/strepThroat/Pages/default.aspx. Accessed April 22, 2010.
- Giannoni CM. Streptococcal pharyngitis. In: Bope ET, et al. Conn's Current Therapy 2010. 61st ed. Philadelphia, Pa.: Saunders Elsevier; 2009. http://www.mdconsult.com/book/player/book.do?method=display&type=bookPage&decorator=header&eid=4-u1.0-B978-1-4160-6642-2..00003-X--sc0070&uniq=195595841&isbn=978-1-4160-6642-2. Accessed April 22, 2010.
- Fort GG. Pharyngitis/tonsillitis. In: Ferri FF. Ferri's Clinical Advisor 2010. St. Louis, Mo.: Mosby; 2009. http://www.mdconsult.com/das/book/body/197105845-8/0/2088/496.html?tocnode=58133576&fromURL=496.html#4-u1.0-B978-0-323-05609-0..00025-3--sc0140_10202. Accessed April 22, 2010.
- Choby B. Diagnosis and treatment of streptococcal pharyngitis. American Family Physician. 2009;79:383.
- Hayden GF, et al. Acute pharyngitis. In: Kliegman RM, et al. Nelson Textbook of Pediatrics. 18th ed. Philadelphia, Pa.: Saunders Elsevier; 2007. http://www.mdconsult.com/das/book/body/197105845-9/0/1608/897.html?tocnode=54482109&fromURL=897.html#4-u1.0-B978-1-4160-2450-7..50380-7_7372. Accessed April 22, 2010.
- Fleisher GR. Evaluation of sore throat in children. http://www.uptodate.com/home/index.html. Accessed April 22, 2010.
- Fort GG. Rheumatic fever. In: Ferri FF. Ferri's Clinical Advisor 2010. St. Louis, Mo.: Mosby; 2009. http://www.mdconsult.com/das/book/body/195595841-8/984459939/2088/572.html#4-u1.0-B978-0-323-05609-0..00027-7--s2315_11750. Accessed April 22, 2010.
- Hoecker JL (expert opinion). Mayo Clinic, Rochester, Minn. April 30, 2010.

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