Zoe's docs have never treated her Staph unless she is actively showing icky symptoms of an infection. Otherwise, most of the time, we do not treat it.
The kiddos will culture Staph....the more we treat it with anti-biotics....the quicker it will lead to MRSA. Not to say that someone with MRSA was treated often for Staph...but, logically, the more you treat regular ole Staph with anit-biotics, the likelier it will turn into MRSA eventually.
Just my thoughts.......