10 Questions
Which structural feature of staphylococci interferes with opsonization and subsequent phagocytosis?
Capsular polysaccharide
What is an important indicator of pathogenicity in staphylococci?
Production of coagulase
Which factor may facilitate bacterial attachment to tissues damaged by toxic factors elaborated by staphylococci?
Staphylococcal cell wall proteins
Which virulence factor of S. aureus is plasmid or phage-mediated?
Some virulence factors
What may predispose to the development of staphylococcal infection?
Minor trauma or immunosuppression
Which factor produced by staphylococci interferes with opsonization and subsequent phagocytosis?
Capsular polysaccharide
Which marker for pathogenicity is an important indicator of pathogenicity in staphylococci?
Coagulase
Which virulence factor of S. aureus may facilitate bacterial attachment to damaged tissues?
Staphylococcal cell wall proteins
Which type of factors are most of the virulence factors encoded in the staphylococcal genome?
Staphylococcal cell wall proteins
Which structural feature of staphylococci binds to fibronectin and fibrinogen, facilitating bacterial attachment to tissues?
Staphylococcal cell wall proteins
Study Notes
Staphylococcal Infections
- The presence of a capsule in staphylococci interferes with opsonization and subsequent phagocytosis.
- The production of coagulase is an important indicator of pathogenicity in staphylococci.
- The binding of bacterial surface components to fibronectin and fibrinogen facilitates bacterial attachment to tissues damaged by toxic factors.
- The virulence factor of S.aureus, enterotoxin, is plasmid or phage-mediated.
- The presence of damaged tissues, for example, those caused by toxic factors, may predispose to the development of staphylococcal infection.
- The production of the polysaccharide capsule interferes with opsonization and subsequent phagocytosis.
- Coagulase is a marker for pathogenicity and is an important indicator of pathogenicity in staphylococci.
- The binding of bacterial surface components to fibronectin and fibrinogen facilitates bacterial attachment to damaged tissues.
- Most of the virulence factors in staphylococci are encoded in the genome as chromosomal genes.
- The surface component of staphylococci that binds to fibronectin and fibrinogen is the polysaccharide capsule.
Test your knowledge of Staphylococcus aureus virulence factors and their pathogenic effects with this quiz. Explore how these pyogenic bacteria cause suppurative lesions and the impact of minor trauma or immunosuppression on infection development.
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