Anti-MRSA N95 mask?

I don't get this.  FDA has just approved an antibacterial N95 mask. The SpectraShield mask is labeled as an N95 surgical respirator with activity against S. pyogenes, MRSA, and H. influenzae when the bacteria are exposed to the outer surface of the mask.  When should these be used and why?  Is there evidence that in settings where an N95 should be used (i.e. caring for TB+ patients) that healthcare workers are contracting MRSA or Group A Strep? Are surgeons acquiring MRSA in the OR from their patients?  I probably missed the publications where they compared HCW acquisition rates between standard N95 and antibacterial N95. Please forward them along. 

PR Newswire, April 8, 2011


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