MRSA my friend, or better said my partner.
Now that may sound a funny way to start a comment to your question.
Let me say that for the last 12 years I have been diagnosed with "Chronic Osteomyelitis" (Staphylococcus aureus and Streptococcus) which I contracted in a hospital after an OP. My problem is a branch/off-shoot of MRSA and has three levels "Basic" which can be cured quite easily with treatment. Then there is "Acute" which is harder to treat and can take quite a while with antibiotics before the problem is solved. The third level is "Chronic" (which I have), and with Osteomyelitis, this bacterium has got into my bone marrow and attacked the ankle joint, the foot bone (Talus) and the leg bone (Tibia). Over the 12 years the bacteria in time slowly traveled over my whole body. I wear Orthopedic shoes, that keep my damaged foot/ankle at 90° and never go out of the house without wearing them. I haven't run or walked long distances in all this time, and can only drive an automatic I'm glad to say. My right foot being my good foot.
My biggest fear is that although Osteomyelitis will not kill me, the breaking of a bone will. The problem then is that the bacteria come in contact with my blood and then I have blood poisoning. Blood and bacteria don't go to good together leaving my wife with a big problem, if I don't get help straight away.
My answer to your question is "Yes I do know a lot about MRSA"
If you need to know more about MRSA, pop over to my page and have a look at some of my medical hubs.