Try to make sure your daughter and husband cover there mouths when coughing and sneezing and let daddy wipe your Lil girl after she goes number two if she not doing it herself yet. Those are the two ways it spreads that I know of
I have been reading on this in my bio class and if you disinfect very well and try to limit your bodliy fluid swapping the odds of you getting it are slim and I would try to do so cuz if you get it and can't get eid of it b4 baby is born it can pass to baby :( although baby's born with it usually get better b4 mom does and experience very subtle symptoms.