Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Strep throat epidemiology and demographics
Introduction
Overview
Overview
GAS pharyngitis is the most common bacterial cause of pharyngitis.[1] Worldwide, the incidence of group A stretococcal pharyngitis (GAS) is estimated to be above 616 million cases annually.[2] It commonly affects children aged 5-15 years and is rare in children age less than 3 years.[3] GAS pharyngitis is common in winter and early spring season.[3]
Epidemiology
Epidemiology
- GAS pharyngitis is the most common bacterial cause of pharyngitis.[1]
- Worldwide, the incidence of group A stretococcal pharyngitis (GAS) is estimated to be above 616 million cases annually.[2][3]
- It accounts for 20-30% cases of acute bacterial pharyngitis in children and 5-15% in adults.[3][1]
- The CDC does not track the incidence of GAS pharyngitis.[3]
Demographics
Demographics
The following demographic factors may affect the incidence and prevalence of GAS pharyngitis.[3]
Age
Group A streptococcal pharyngitis commonly affects children aged 5-15 years and is rare in children aged less than 3 years.[3]
Sex
Men and women are affected equally by Group A streptococcal pharyngitis.[3]
Race
There is no racial predilection to Group A streptococcal pharyngitis.[3]
Environmental factors
GAS pharyngitis is common in winter and early spring.[3]
References
References
- ↑ 1.0 1.1 1.2 Cohen-Poradosu R, Kasper DL (2007). “Group A streptococcus epidemiology and vaccine implications”. Clin Infect Dis. 45 (7): 863–5. doi:10.1086/521263. PMID 17806050.
- ↑ 2.0 2.1 Carapetis JR, Steer AC, Mulholland EK, Weber M (2005). “The global burden of group A streptococcal diseases”. Lancet Infect Dis. 5 (11): 685–94. doi:10.1016/S1473-3099(05)70267-X. PMID 16253886.
- ↑ 3.00 3.01 3.02 3.03 3.04 3.05 3.06 3.07 3.08 3.09 http://www.cdc.gov/groupastrep/diseases-hcp/strep-throat.html Accessed on October 18, 2016
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Aysha Anwar, M.B.B.S[2]