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Group A streptococcal pharyngitis and immune-mediated complications: from diagnosis to management
Stanford T Shulman1, Robert R Tanz
1Northwestern University, The Feinberg School of Medicine, Chicago, IL, USA. sshulman@childrensmemorial.org
Insights
Group A streptococcal pharyngitis is a common bacterial infection in children. A selective testing strategy can help manage cases in areas with low acute rheumatic fever rates.
Area of Science:
- Pediatric infectious diseases
- Bacteriology
- Public health
Background:
- Group A streptococcal pharyngitis is a frequent bacterial infection in children aged 5-11, particularly during winter and spring.
- Accurate diagnosis requires rapid testing or culture.
- Acute rheumatic fever, a serious complication, is now rare in many Western countries.
Purpose of the Study:
- To propose a management strategy for Group A streptococcal pharyngitis.
- To focus on geographic areas with very low rates of acute rheumatic fever.
- To optimize diagnostic testing by identifying patients with viral-like symptoms who may not require testing.
Main Methods:
- Review of current epidemiological data on Group A streptococcal pharyngitis and acute rheumatic fever.
- Development of a selective testing algorithm based on clinical presentation.
- Emphasis on avoiding testing in patients presenting with viral symptoms like cough and rhinorrhea.
Main Results:
- Group A streptococcal pharyngitis is a significant public health concern due to its prevalence and potential complications.
- Acute rheumatic fever incidence has decreased, likely due to reduced circulation of highly rheumatogenic strains.
- Selective testing can be a viable strategy in low-risk populations.
Conclusions:
- A management strategy emphasizing selective testing is proposed for Group A streptococcal pharyngitis in specific geographic regions.
- This approach aims to reduce unnecessary testing in patients with viral symptoms, focusing resources on those most likely to have strep throat.
- The decline in acute rheumatic fever supports the feasibility of such targeted public health interventions.
Abstract:
Group A streptococcal pharyngitis remains the most important bacterial pharyngitis because of its frequency and potential complications. Group A streptococcal pharyngitis is most common in children 5-11 years of age in winter-spring, and a rapid test or culture is necessary for accurate diagnosis. We propose a management strategy for those geographic areas with very low acute rheumatic fever rates, emphasizing selective testing that avoids testing those patients with viral-like features (e.g., rhinorrhea and cough). Acute rheumatic fever is the most important immune-mediated sequela and has become rare in most areas of the USA and Western Europe, most probably due to decreased circulation of highly rheumatogenic group A streptococcal strains.
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