Over 90% of Staphylococcus aureus isolates are penicillin- resistant. Why?
A) They have loosely organized polysaccharide slime layers.
B) They produce coagulase.
C) Cell division occurs in successively different planes, and the daughter cells remain attached to one another.
D) They produce staphylokinase, which dissolves fibrin threads in blood clots.
E) They produce fi- lactamase.
Correct Answer:
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