Questions about the stomach flu

g.byas

It's going around horribly where I live and my Husbands sister just got over it and her Husband got it and got  over it about 3 days ago. They want my Husband to go to their house this weekend to help them with some things. I know how TERRIBLY Contagious this virus is and im SO scared of my Husband getting it and bringing it home to our 4 1/2 month old! She needs my Husband to come over to help w/ some things about the house before her Shower next Sunday and this Sat is the only time she can be there. So, Am i