http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2364932/pdf/MBD-...
(Check out the more recent citations for further reading)
I'm not diminishing the danger of super bacteria, and I believe being in hospitals is perhaps just as bad as being in some war zone in terms of mortality if you're immuno-compromised or recovering from a disease/surgery, but I find it odd (not really, I've seen the self-defeating internal machinations of academia/pharma with my own eyes) that the advent of using silver as an anti-microbial is so neglected in the narrative; Bosch uses it in Germany in their refrigerators, and companies like DeRoyal sell gauze dressings specifically stated for that purpose.
I thought the pervasive theory about how it 'spontaneously emerged in nature' incredibly suspect considering I was completing my courses in Microbio and Biochem and working extensively with bacteriophages to create anti-biotic resistant e. coli with limited success under controlled lab conditions... then I realized my university-health sciences department was heavily funded by a major hospital. And all for something that was patented by Baxter:
http://www.digitaljournal.com/article/276194 http://www.globalresearch.ca/big-pharma-baxter-files-swine-f...
So I find the use of silver nano-partical therapy, oral or sub-lingual administration or atomized silver inhalation methods are acutely lacking as possible means to combat anti-biotic resistant bacteria/infections, as well as viruses and fungi.