Which enzyme can hide S produced in blood to escape the elimination of immune cells?
A. Hyaluronidase;
B. Staphylokinase;
C. Lipases ;
D. coagulase
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How does Staphylococcus aureus affect the matrix between cells in the human body?
A. aureus triggers blood clotting, which coats the matrix and inhibits cellular communication.
B. aureusproduces an hyaluronidase that dissolves hyaluronic acid and thus enables it to pass between the cells.
C. aureusdoes not affect the matrix but instead produces a necrotizing agent that dissolves body cells.
D. aureuspossesses a hyaluronic acid capsule that causes leukocytes to ignore the bacterium as if it were camouflaged.
Which of the following conditions is a systemic disease caused by staphylococcus?
A. Impetigo
B. folliculitis
C. carbuncle
D. toxic-shock syndrome
Which statement is not right about infection of Staphylococcus aureus?
A. It can cause hemolysis of RBC,
B. It can cause endotoxemia.
C. It may cause food poison,
D. It may cause pyogenic infection.
Which toxin produced by S. aureus can injure skin and cause scalded skin syndrome in neonates and loss of the epidermis?
A. enterotoxin;
B. toxic shock syndrome toxin ;
C. hemolysin;
D. Epidermolytic toxin
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