MRSA, otherwise known as the "Superbug," often sends the media into frenzy, particularly when a person contracts it in a locker room or a college dorm and dies. There are two types, community-associated and health-care-associated, and they are often confused. Community-based infections account for few deaths or serious disabilities, yet receive most of the media's attention. Health-care-associated infections accounted for 85 percent of the reported cases and almost 18,000 deaths in 2005, according to a Centers for Disease Control and Prevention estimate released in 2007. The cause of these difficult-to-treat infections is formally known as methicillin-resistant staphylococcus aureus. It can defeat several common antibiotics. Updated February 2010