So, my sister was going out for New Years Eve tonight to her friends house for a sleepover, and her other friend that was going came to wait at our house so they could just all be picked up together and go to the friend's house. After about an hour of hanging out here, I found out my sister's friend was sick on Christmas :/ I don't know with what, but I didn't ask since she wasn't my friend and it seemed kind of odd to ask her. I don't want to assume the worst, but I don't want to be unprepared for anything either. Assuming worst case scenario (sv*) I'm freaking out for different reasons. I feel like I should disinfect the stuff everyone was touching and I'm worried about my sister bringing something back too. I don't know if my family even has bleach anywhere in the house to use to help it. Close to a week later, how risky is it to be around someone who's been sick? I know my sister isn't careful at all and the other parents don't seem concerned or anything either. I'm the only one focusing on it :/ I don't know what I can do for any of this.