The most clinically significant aspect of Staphylococcus aureus coagulase positivity is that it B. allows immune evasion via fibrin clot formation.
Coagulase-positive Staphylococcus aureus can form a fibrin clot around itself by converting fibrinogen to fibrin, which helps the bacteria evade the host's immune response. This ability to form clots can contribute to the pathogenicity of the organism.