18 Questions
Which virulence factor of Staphylococcus aureus helps the bacterium evade the host immune response by promoting clot formation?
Coagulase
What is the function of Staphylokinase in Staphylococcus aureus infections?
Dissolving fibrin clots to facilitate infection spread
Which enzyme of Staphylococcus aureus digests hyaluronic acid present in connective tissues to enhance invasion and survival in tissue?
Hyaluronidase
What is the main function of DNAse in Staphylococcus aureus infections?
Destroying DNA to enhance pathogen mobility
Which enzyme of Staphylococcus aureus degrades lipids on the skin surface, allowing bacterial entry into epidermal layers?
Lipase
What is the function of Staphylococcus aureus coagulase?
Promoting clot formation to protect bacteria
Which toxin is produced by all strains of Staphylococcus aureus and suppresses phagocytosis?
Gamma Toxin
Which condition is characterized by bullous exfoliative dermatitis and primarily occurs in newborns?
Scalded Skin Syndrome (SSS)
What is the main source of hospital-acquired infections from contaminated medical instruments and devices?
Staphylococcus epidermidis
Which skin condition presents as localized skin lesions in the form of blisters?
- Pemphigus neonatorum
What contributes to the invasiveness of Staphylococcus aureus by being associated with Gamma Toxin?
Staphylococcal food poisoning
Which factor is associated with women using highly absorbent tampons and can lead to hypotension and shock?
Toxic Shock Syndrome
Which virulence factor of Staphylococcus aureus inhibits phagocytosis and promotes adhesion to host cells?
Capsular polysaccharide
What makes Beta-lactamase significant in the context of Staphylococcus aureus?
It breaks down penicillin and confers resistance to antibiotics
Which factor contributes to the pathogenicity of Staphylococcus aureus by having endotoxin-like activity?
Peptidoglycan
What is the function of Protein A in Staphylococcus aureus infections?
Prevents opsonization and phagocytosis by host immune cells
Which factor of Staphylococcus aureus helps the bacterium evade the host immune system by inhibiting phagocytosis?
Capsular polysaccharide
What is the most common etiology of Staphylococcal food poisoning?
Enterotoxin A
Test your knowledge on Staphylococcus aureus by identifying its growth requirements, colony characteristics, and modes of transmission. Learn about the unique pigment and hemolysis patterns associated with this pathogenic bacterium.
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