Parents living in a small flat eg 1-2 room rental flat with no help at all. How do you prevent your children from catching the bug when they share the same room and same bed? I am sharing a queen size bed with my 3 girls below 5yo.

wearing mask when one got flu. and open the window for a better air circulation

Do try and keep the windows open, and maybe stock up on some vitamin C ...

Keep your room well ventilated so that fresh air is always in

Keep it well ventilated..Open all the windows.