COVID у сына в школе: как понять, когда заразился ребенок и принес ли домой вирус? Вопрос!

i was feeling really sick the last few days honestly it felt the same way when i got covid but since i was the only one sick i didnt think much of it. just went along with it being a bad cold and me being weak and letting it knock me down 😂. come to find out that a kid in my sons class tested positive and my kids are asymptomatic, did this kid just test positive or had this child been sick with covid long enough for my kids to bring it home. its a mystery we are never gonna know about. We had a whole summer not hearing about covid but 2 weeks into school of course this happens.