Staphylococcus aureus is a type of bacteria commonly found on the skin and in the noses of healthy individuals. It can cause a range of infections, from minor skin issues like boils and impetigo to more serious conditions such as pneumonia and bloodstream infections. This bacterium is known for its ability to develop resistance to antibiotics, making some infections difficult to treat. Infections caused by Staphylococcus aureus can occur when the bacteria enter the body through cuts or other openings. Good hygiene practices, such as regular handwashing and proper wound care, can help prevent these infections. In healthcare settings, strict protocols are often in place to control the spread of this bacterium.