Related Experiment Video
Updated: May 10, 2026

Implementation of a Permeable Membrane Insert-based Infection System to Study the Effects of Secreted Bacterial Toxins on Mammalian Host Cells
Published on: August 19, 2016
Serious group a streptococcal infections
Christopher J Wong1, Dennis L Stevens
1Division of General Internal Medicine, Department of Medicine, University of Washington, 4245 Roosevelt Way Northeast, Box 354760, Seattle, WA 98105, USA. cjwong@uw.edu
Abstract:
The spectrum of illnesses caused by group A streptococcus (GAS) includes invasive infections, noninvasive infections, and noninfectious complications. Increasingly virulent infections associated with high morbidity and mortality have been observed since the late 1980s and continue to be prevalent in North America and worldwide. Penicillin remains the therapy of choice, with the addition of clindamycin recommended in high risk cases. Early recognition of GAS as the cause of these serious clinical syndromes is critical for timely administration of appropriate therapy. In this review, the pathophysiology, clinical manifestations, and treatment of invasive GAS infections are discussed.
Insights
Group A Streptococcus (GAS) causes severe infections globally. Early diagnosis and treatment with penicillin, sometimes combined with clindamycin, are crucial for managing invasive GAS disease.
Area of Science:
- Infectious Diseases
- Microbiology
- Clinical Medicine
Background:
- Group A Streptococcus (GAS) causes a range of illnesses, from noninvasive to severe invasive infections.
- Since the late 1980s, there has been an observed increase in the virulence of GAS infections, leading to significant morbidity and mortality worldwide.
- Invasive GAS infections pose a substantial public health challenge, particularly in North America.
Purpose of the Study:
- To review the pathophysiology of invasive group A Streptococcus infections.
- To outline the clinical manifestations of invasive GAS disease.
- To discuss current treatment strategies for invasive group A Streptococcus infections.
Main Methods:
- This review synthesizes existing literature on invasive group A Streptococcus infections.
- Information was gathered on the epidemiology, pathogenesis, clinical presentation, and therapeutic approaches.
- The review focuses on understanding the increasing virulence and management of GAS.
Main Results:
- Invasive GAS infections are associated with high rates of morbidity and mortality.
- Penicillin is the primary treatment of choice for GAS infections.
- Clindamycin is recommended as an adjunct therapy for high-risk invasive GAS cases.
Conclusions:
- Early and accurate diagnosis of invasive GAS infections is critical for effective patient outcomes.
- Timely administration of appropriate antibiotic therapy, guided by clinical recognition, is essential.
- Understanding the evolving nature of GAS virulence is key to combating these serious infections.
Related Concept Videos
Staphylococcal Skin Infections
Bacterial Meningitis I: Introduction
Rheumatic Heart Disease I: Introduction
Acute Pharyngitis
Acute pharyngitis is the inflammation of the back of the throat (pharynx), commonly resulting in a sore throat. It is a frequently encountered condition that prompts individuals to seek medical advice.
Classification
Acute pharyngitis can be categorized based on its underlying cause:
Tonsillitis I: Introduction
Etiology
Three primary contributing factors have been identified.
Bacterial Phylum Spirochaetes
