What type of infections are primarily caused by Staphylococcus aureus?

Staphylococcus aureus is a type of bacteria that is well known for causing a variety of infections in humans. These infections can range from mild skin conditions, like abscesses and boils, to more severe diseases such as pneumonia, endocarditis, and sepsis. Being a facultative anaerobic gram-positive bacterium, Staphylococcus aureus is capable of thriving in various environments and can produce various enzymes and toxins that contribute to its pathogenicity.

Given that Staphylococcus aureus is a bacterium, the infections it causes fall under the category of bacterial infections. Other forms of infections listed, such as viral, fungal, or parasitic, are caused by entirely different organisms and have distinct characteristics and treatment processes. Understanding the specific type of microorganism responsible for infections is crucial for accurate diagnosis and effective treatment.