I have 2 secondary school DC at different schools. Both schools are old buildings with small poorly ventilated classrooms so unable to social distance. There's been a case of CV in each school however the infected DC has not passed the virus on to any other DC in their year group (year 8 and year 9). It's made me wonder how necessary it is to shut the bubbles. What experience do others have? From what I can see locally it doesn't seem to be spreading massively amongst pupils like we thought it would which is great.