Today my niece was at her friends house who has had "the stomach flu" (which I'm assuming is noro). Her friend was sick with this since at least Monday and up until yesterday, but felt better today which is why my niece was with her. Anyway, my niece was at this friends house tonight so I am extremely worried she caught something from her, seeing as it's almost inevitable she did. She's coming to MY house tomorrow with the germs she may or may not have caught at her friends house, so I am extremely worried she's going to spread it around on surfaces at my house or to the people I live with or even me.. WHAT DO I DO?! I'm going to try to get her to drink grape juice and I'm going to coat the place with Lysol when she leaves, but I dunno how to get rid of this uneasy feeling coming over me... Help