Staphylococcus Aureus, aka "Golden staph" is not exactly synonymous with MRSA. The MR part means 'Methicillin Resistant', which is a mutated form of SA that can't be killed with Methicillin, a common antibiotic. SA is extremely common - it's everywhere, all over your skin, right now. It's only dangerous if it starts to infect a wound and gets into the bloodstream. Most SA will still respond to antibiotics, only the MRSA strain won't. But this strain is still thankfully fairly rare, though it's a growing problem. One solution would be for everyone to stop taking antibiotics for minor ailments such as the common cold which it does nothing for, but adds a lot of unnecessary antibiotics to the environment, thus prompting common bacteria such as SA to evolve into the MRSA form. If we lose the benefit of antibiotics, it will be a disaster, and we can thank all the stupid people for that.