Mutated staph seems limited to teaching hospitals.
D000900:Anti-Bacterial Agents; D002487:Centers for Disease Control and Prevention, U.S.; D004352:Drug Resistance, Microbial; D006784:Hospitals, Teaching; D006801:Humans; D013203:Staphylococcal Infections / Q000188:drug therapy / Q000453:epidemiology* / Q000517:prevention & control; D014481:United States