A couple of years ago some doctors at San Francisco State University tested the seats of the Bay Area Rapid Transit (BART) for bacteria because many people were complaining of how filthy they seemed. The results showed many forms of bacteria immune to antibiotics including MRSA. I decided to ride the BART to work for a month instead of biking or driving, and every time I did I took my own sample of the seats with a razor blade. I then made this petri dish like collage of the threads