Related Experiment Video

Updated: May 19, 2026

Lipopolysaccharide Infusion as a Porcine Endotoxemic Shock Model
05:52

Lipopolysaccharide Infusion as a Porcine Endotoxemic Shock Model

Published on: December 8, 2023

[Streptococcus pyogenes toxic-shock syndrome]

Rui Antunes1, Marco Diogo, Alexandre Carvalho

  • 1Serviço de Medicina 2, Hospital São Marcos,. Braga, Portugal.

Acta Medica Portuguesa
|August 4, 2012
PubMed

Insights

Invasive Streptococcus pyogenes infections are rising, sometimes leading to severe toxic shock syndrome. This case highlights a rare instance of bacteremia caused by Streptococcus pyogenes complicated by toxic shock syndrome.

Area of Science:

  • Infectious Diseases
  • Microbiology
  • Critical Care Medicine

Background:

  • There is a notable increase in invasive infections attributed to Streptococcus pyogenes (Group A Streptococcus).
  • Streptococcus pyogenes infections can lead to severe complications, including toxic shock syndrome (TSS).
  • Toxic shock syndrome is characterized by septic shock and multiorgan failure.

Observation:

  • This report details a rare case of bacteremia caused by Streptococcus pyogenes.
  • The presented case was complicated by the development of toxic shock syndrome.

Findings:

  • The study documents a specific instance of Streptococcus pyogenes bacteremia.
  • The bacteremia progressed to a complex presentation of toxic shock syndrome.

Implications:

  • This case underscores the potential severity of Streptococcus pyogenes infections.
  • Understanding rare presentations of TSS is crucial for timely diagnosis and management.
  • Further research into Streptococcus pyogenes virulence factors may elucidate mechanisms of TSS.

More Related Videos

A Reproducible Intensive Care Unit-Oriented Endotoxin Model in Rats05:56

A Reproducible Intensive Care Unit-Oriented Endotoxin Model in Rats

Published on: February 20, 2021

Related Concept Videos

Staphylococcal Skin Infections01:29

Staphylococcal Skin Infections

Staphylococcus aureus is a Gram-positive coccus that resides harmlessly on the skin and mucous membranes of healthy individuals. When the skin barrier is breached, it can shift from a commensal to an opportunistic pathogen. This transition is facilitated by surface adhesins, such as clumping factor B and S. aureus surface protein G (SasG), which bind to structural proteins, including loricrin and cytokeratin, in the damaged epidermis. Protein A, another key factor, binds the Fc region of...
Diphtheria01:28

Diphtheria

Diphtheria is an acute, toxin-mediated infectious disease that primarily affects the upper respiratory tract. It is caused by Corynebacterium diphtheriae, a Gram-positive, pleomorphic rod that lacks spore-forming capability and exhibits a characteristic club-shaped morphology under microscopic examination. While C. diphtheriae can asymptomatically colonize mucosal surfaces, clinical disease manifests only when the bacterial strain is lysogenized by a specific β-corynephage. This phage...
Acute Pyelonephritis II: Diagnostic Studies and Management01:28

Acute Pyelonephritis II: Diagnostic Studies and Management

Introduction:For diagnosing acute pyelonephritis, a comprehensive patient history is collected to identify symptoms such as dysuria, frequent or urgent urination, flank pain, or costovertebral angle (CVA) tenderness that may suggest a kidney infection.Physical ExaminationDuring the physical examination, CVA tenderness is assessed. This involves gentle percussion over the costovertebral angle, where tenderness often indicates a kidney infection.Diagnostic TestsUrinalysis: Used to identify white...
Acute Pyelonephritis I: Introduction01:27

Acute Pyelonephritis I: Introduction

Pyelonephritis is a bacterial infection that primarily affects the renal parenchyma and collecting system, including the renal pelvis, tubules, and interstitial tissue of one or both kidneys. It can be classified as either acute—a sudden, severe infection—or chronic, which refers to long-term or recurrent kidney infections.The primary cause of acute pyelonephritis (APN) is bacterial infection, with Escherichia coli accounting for approximately 70-80% of cases. Other bacteria, such as Proteus,...
Drug Toxicity: Allergic Reactions01:30

Drug Toxicity: Allergic Reactions

Drug-related allergies are immune-mediated responses triggered by the administration of pharmacological agents. These hypersensitivity reactions are classified based on the immune mechanisms involved. The four primary types—Type I, II, III, and IV—are mediated by different immunological pathways and exhibit distinct clinical manifestations.Type I Hypersensitivity/ IgE-Mediated Reactions: Immunoglobulin E (IgE) immediately mediates Type I hypersensitivity reactions. Upon initial exposure to a...
Bacterial Gastroenteritis01:18

Bacterial Gastroenteritis

Bacterial gastroenteritis, characterized by diarrhea, abdominal cramps, and vomiting, is often caused by ingestion of contaminated food or water and is frequently associated with pathogenic Escherichia coli strains. These microbes exploit two principal mechanisms to inflict disease.Shiga toxin–producing E. coli, also referred to as STEC—notably O157:H7—release Shiga toxins that target ribosomes, blocking protein synthesis. The B subunit of the toxin binds the host glycolipid receptor...