Feb 19, - Staphylococcus aureus is a type of bacteria that lives on healthy people's nose and skin. It does not usually cause problems. However, if there. Staph Infection (Staphylococcus Aureus) Staph infections may cause disease due to direct infection or due to the production of toxins by the bacteria. Symptoms and signs of a localized staph infection include a collection of pus, such as a boil, furuncle, or abscess.Staph infection facts · What is Staphylococcus · What is the incubation.