I tend to think that when it comes to households, once a virus is through the door it's pretty hard to keep it from going through the entire family, especially if it's airborne. We're already spreading it before we even know we've got it. Best bet is just to shore up the immune defenses and keep cleanliness up to minimise reinfection. When it comes to kids it's almost impossible not to share! 😅
Glad you're all feeling better and good to hear the tests came back negative.