Related Experiment Video

Updated: Jul 6, 2026

A Murine Model of Group B Streptococcus Vaginal Colonization
10:19

A Murine Model of Group B Streptococcus Vaginal Colonization

Published on: November 16, 2016

Variation in clinical presentation of childhood group A streptococcal pharyngitis in four countries

Anne W Rimoin1, Christa L Fischer Walker, Rohit A Chitale

  • 1Department of Epidemiology, UCLA School of Public Health, Los Angeles, CA 90095, USA. arimoin@ucla.edu

Journal of Tropical Pediatrics
|April 1, 2008
PubMed

Insights

Clinical signs of Group A Streptococcus (GAS) pharyngitis in children vary significantly by country. Local validation of clinical decision rules for sore throat management is critical due to regional differences.

Area of Science:

  • Pediatric infectious diseases
  • Epidemiology
  • Clinical microbiology

Background:

  • Sore throat is a common pediatric complaint.
  • Group A beta-hemolytic Streptococcus (GAS) pharyngitis requires specific management.
  • Clinical presentation of GAS pharyngitis can vary geographically.

Purpose of the Study:

  • To compare clinical signs and symptoms of pediatric sore throat across different countries.
  • To identify clinical criteria predictive of GAS pharyngitis.
  • To assess the generalizability of clinical decision rules for pharyngitis.

Main Methods:

  • Cross-sectional study involving 2040 children aged 2-12 years with sore throat.
  • Recruitment from urban pediatric clinics in Brazil, Croatia, Egypt, and Latvia.
  • Standardized data collection and GAS throat culture, analyzed using chi(2) tests, ANOVA, and Odds Ratios.

Main Results:

  • Significant variations in clinical signs of GAS pharyngitis were observed between countries.
  • Few clinical signs were consistently associated with GAS pharyngitis across all four countries.
  • Some signs were useful predictors in two or three countries, indicating regional variability.

Conclusions:

  • Clinical manifestations of pediatric pharyngitis differ by geographic region.
  • Generalized clinical decision rules for GAS pharyngitis require local validation.
  • Tailoring diagnostic and management strategies to local epidemiological patterns is essential.

More Related Videos

Constructing Mutants in Serotype 1 Streptococcus pneumoniae strain 519/4306:06

Constructing Mutants in Serotype 1 Streptococcus pneumoniae strain 519/43

Published on: September 11, 2020

Capsular Serotyping of Streptococcus pneumoniae by Latex Agglutination09:11

Capsular Serotyping of Streptococcus pneumoniae by Latex Agglutination

Published on: September 25, 2014

Related Concept Videos

Streptococcal Pharyngitis01:27

Streptococcal Pharyngitis

Streptococcal pharyngitis, commonly known as “strep throat,” is an acute infection of the oropharyngeal tissues caused by the Gram‑positive Group A Streptococcus (Streptococcus pyogenes). Transmission occurs primarily through respiratory droplets expelled during coughing, sneezing, or talking.Mechanisms of Host Entry and Immune EvasionUpon entering the host, S. pyogenes adheres to the mucosal epithelial cells of the pharynx via surface proteins, notably lipoteichoic acid and the antiphagocytic...
Acute Pharyngitis01:30

Acute Pharyngitis

Introduction
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: Introduction01:30

Tonsillitis I: Introduction

Tonsillitis is inflammation of the tonsils, which are two lymphoid tissue masses at the back of the throat. This condition can cause discomfort and irritation in the throat.
Etiology
Three primary contributing factors have been identified.
Rheumatic Heart Disease I: Introduction01:23

Rheumatic Heart Disease I: Introduction

Rheumatic heart disease or RHD is a chronic condition that results from rheumatic fever, causing permanent damage to the heart valves.Etiology and Risk FactorsIt primarily arises from rheumatic fever, an inflammatory disease that can develop after untreated or inadequately treated group A streptococcal (GAS) pharyngitis. Streptococcus spreads through direct contact with oral or respiratory secretions. While the bacteria are the causative agents, factors like malnutrition, overcrowding, poor...
Atypical Pneumonia01:14

Atypical Pneumonia

Atypical pneumonia, often caused by Mycoplasma pneumoniae, is a form of pulmonary infection that differs from the classical presentation of bacterial pneumonia in both its cause and clinical symptoms. Mycoplasma pneumoniae is a pleomorphic bacterium notable for its lack of a rigid cell wall. This structural characteristic imparts resistance to beta-lactam antibiotics and significantly influences the bacterium’s behavior within the human host.Other pathogens responsible for the disease include...
Bacterial Meningitis I: Introduction01:22

Bacterial Meningitis I: Introduction

Bacterial meningitis is a severe, life-threatening inflammation of the meninges, particularly the pia mater and arachnoid mater, affecting the subarachnoid space, ventricles, and cerebrospinal fluid (CSF). If untreated, it can lead to significant neurological complications or death.Causative AgentsCommon pathogens vary with age and immune status. In adults, major organisms include Streptococcus pneumoniae, Neisseria meningitidis, and Haemophilus influenzae. Streptococcus agalactiae (group B...