Related Experiment Video
Updated: Aug 11, 2026

Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus (MRSA)
Published on: February 9, 2011
Invasive group A streptococcal infections in children
1University of Calgary, Alberta, Canada.
Insights
Invasive group A streptococcal infections are rising in children and adults. Early diagnosis and treatment, including antibiotics and supportive care, are crucial for improving outcomes and preventing spread.
Area of Science:
- Infectious Diseases
- Pediatrics
- Microbiology
Background:
- Invasive group A streptococcal infections and streptococcal toxic shock syndrome (STSS) are increasing causes of severe illness and death in both children and adults.
- In pediatric cases, respiratory infections are frequent, alongside skin and soft tissue infections, often linked to varicella (chickenpox).
Purpose of the Study:
- To highlight the importance of early diagnosis for invasive group A streptococcal infections.
- To outline current treatment strategies and potential interventions for improving patient outcomes.
- To identify areas for future research, including pathogeneses and risk factors.
Main Methods:
- Review of clinical presentations and diagnostic challenges associated with invasive group A streptococcal infections.
- Analysis of therapeutic approaches, including antimicrobial therapy, intravenous immunoglobulin (IVIG), and surgical interventions.
- Consideration of chemoprophylaxis strategies for close contacts in high-risk scenarios.
Main Results:
- Prompt recognition of symptoms and high clinical suspicion are vital for early diagnosis.
- Combination therapy (clindamycin, IVIG for STSS, surgery for necrotizing fasciitis) shows promise in improving outcomes.
- Chemoprophylaxis may be beneficial for household contacts of severely affected patients.
Conclusions:
- Effective management of invasive group A streptococcal infections requires a multi-faceted approach including timely diagnosis and appropriate treatment.
- Ongoing research is needed to elucidate the links between infections, varicella, NSAID use, and the pathogenesis of severe manifestations like STSS and necrotizing fasciitis.
- Further studies will clarify the risk of secondary transmission among close contacts.
Abstract:
Invasive group A streptococcal infections and STSS have increased as causes of morbidity and mortality among children and adults. In children, respiratory foci appear to be the most common, but skin and soft tissue infection, particularly associated with varicella, also are common. Early diagnosis requires awareness of the presenting features and a high index of suspicion. Antimicrobial therapy that includes clindamycin, therapy with IVIG for those with STSS, and surgical intervention for patients with necrotizing fasciitis may improve outcome. Chemoprophylaxis should be considered among household contacts of patients with severe group A streptococcal disease in high-risk settings. Further studies are ongoing to evaluate the hypothesized link of invasive group A streptococcal infection in children with varicella and NSAID use, to better clarify the pathogenesis of STSS and necrotizing fasciitis, and to better document the risk of secondary spread among close contacts of case patients.
Related Concept Videos
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.
Rheumatic Heart Disease I: Introduction
Staphylococcal Skin Infections
Streptococcal Pharyngitis
Bacterial Meningitis I: Introduction

