There's a lot of work in decolonization right now, either with competing bacteria (like the parent article) or with various decolonizing agents.

"Many surgical patients with staph complications actually infected themselves, and did not acquire their strains from their hospital surroundings."

Community acquired Staph is a huge thing. The number of people who get infected from yoga mats, scrapes and cuts playing sports, etc. is huge. The NFL had a problem in locker rooms too a few years back.