Here is a leaflet on MRSA, you will need to put the http and www before you copy and paste it: otispregnancy.org/pdf/staphylococcus_aureus.pdf
It says that it hasn't been known to increase problems with a fetus during pregnancy. However it does later state ways to avoid contracting mrsa (Hand washing, rubber gloves, and so forth). Also you should be tested to find out if you are a carrier.
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