Final answer:
Staphylococcus aureus is the pathogen that one in three people carry on their skin, often found in the nasal passages and can cause a range of infections.
Step-by-step explanation:
One in three (3) people are carriers of the pathogen Staphylococcus aureus on their skin. This bacterium is also commonly found in the nasal passages and on healthy skin. However, pathogenic strains of S. aureus can cause a broad range of infections of the skin and other body systems.
Staphylococcus species, including S. epidermidis and S. hominis, are prevalent in the normal microbiota. In particular, Staphylococcus epidermidis is noted for its role in nosocomial infections, especially when medical devices are inserted into the body, where it can form dangerous biofilms.