Can MRSA travel to the spine?

Yes. Yes it can get there by hematogenous spread, that is once it gets into your blood stream from either a cut, a wound, etc. It can get to any part of your body. Not because it is mrsa, as any other bacteria, fungus, etc. Can do just that. But if concerned ask your doctor, and don't just assume you have MRSA in your spine.
Usually Benign Bact. Staphylococcus aureus frequently present human skin & respiratory passages, especially nose. Mrsa merely means resistant multiple abs. Control of this bacteria, as with all, a function of immune system. Sa most commonly a commensal bacteria, but that reality not good for marketing fear. Dietary choices, activities, emotions & any internal control affecting staph & immune function can change.