Related Experiment Video
Updated: Aug 22, 2026

A Fluorescence-based Method to Study Bacterial Gene Regulation in Infected Tissues
Published on: February 19, 2019
[New Staphylococcus aureus strains]
Anoumou Yaotsé Dagnra1, Anne Tristan, Yves Gillet
1Centre national de référence des staphylocoques, INSERM 0230, IFR62, faculté de médecine Laennec, 69372 Lyon Cedex 08.
Abstract:
Staphylococcus aureus strains are present in the nose of 30% of healthy humans and are responsible for skin and soft tissue infections. Deep seated infections secondarily occurred such as osteomyelitis or infective endocarditis. New toxin-associated clinical entities have been recognized such as the toxin shock syndrome, the staphylococcal scarlet fever, the staphylococcal scalded skin syndrome or the necrotising pneumonia. This later syndrome is associated with Panton Valentine leukocidin producing strains. It occurs mainly in children and has a lethality of 75%. New antibiotic resistances are also emerging, for vancomycin in hospital-acquired infections and for methicillin in community-acquired infections.
Insights
Staphylococcus aureus causes infections ranging from skin issues to severe conditions like necrotizing pneumonia, particularly in children. Emerging antibiotic resistance, including to vancomycin and methicillin, poses a significant public health threat.
Area of Science:
- Microbiology
- Infectious Diseases
- Clinical Medicine
Context:
- Staphylococcus aureus is a common bacterium colonizing 30% of healthy individuals.
- It is a primary cause of skin and soft tissue infections.
- Secondary deep-seated infections include osteomyelitis and infective endocarditis.
Purpose:
- To highlight the spectrum of Staphylococcus aureus infections.
- To discuss emerging toxin-associated clinical syndromes.
- To address the growing challenge of antibiotic resistance.
Summary:
- Staphylococcus aureus infections range from common skin and soft tissue infections to severe, deep-seated conditions.
- Emerging toxin-associated diseases, such as necrotizing pneumonia linked to Panton Valentine leukocidin, are particularly severe, especially in children.
- Significant antibiotic resistance is developing, with strains resistant to vancomycin and methicillin becoming a major concern in healthcare settings.
Impact:
- Increased awareness of severe Staphylococcus aureus syndromes and their associated pathogens.
- Highlights the urgent need for novel therapeutic strategies against resistant strains.
- Underscores the public health implications of antibiotic resistance in Staphylococcus aureus infections.
Related Concept Videos
Staphylococcal Skin Infections
Clinical Significance of Antibiotic Resistance
Mechanism of Antibiotic Resistance in MRSA
Special Staining Techniques
Bacterial Gastroenteritis
Determinants of Bacterial Pathogenicity and Virulence
