Which patient is at greater risk due to a high microbial load from a coagulase-positive subtype of S. aureus?

In this scenario, the emphasis is on the risk factors associated with a high microbial load from a coagulase-positive subtype of Staphylococcus aureus, particularly Staphylococcus aureus itself. This pathogen is known for its virulence and ability to cause severe infections, especially in individuals with compromised immune systems or other underlying health conditions.

A patient like Shawn, who may have risk factors such as immunosuppression, a prosthetic device, or a recent surgical history, would be at a higher risk of experiencing severe complications from infections caused by this bacterium. Coagulase-positive Staphylococcus aureus, including MRSA (methicillin-resistant Staphylococcus aureus), is notorious for its ability to cause serious infections and can lead to conditions such as sepsis, deep tissue infections, and more.

In contrast, patients without these risk factors, such as Susan, might not be at the same level of risk for complications from a high microbial load of this pathogen. Therefore, in this context, it becomes clear that the answer that indicates Shawn is at greater risk accurately reflects the relationship between microbial load and patient susceptibility related to Staphylococcus aureus infections.