Anyone else's primary age kids in big bubbles?

[Crunchymum]

Mine are both in bubbles of 120 (2 year groups per bubble but we have 2 classes in each year group!).

Whole bubble will need to self isolate if there is 1 positive case. Kids are in different bubbles. Not sure how cross bubble siblings work?

It just sounds impossible??

The school I work in has made it very clear that as soon as we have a positive case then we have to phone Public Health England and follow their advice with regards to who isolates. I presume this is what all schools will have to do so I find it interesting that so many already have definite policies in place!

My primary has yeargroup bubbles of 3 classes of just shy of 100 each. We have been told that one case won't shut a bubble. Our head says it will take at least 5 and even then PHE may not suggest closure.

Just another reason why I am anxious really. One case SHOULD shut a bubble, for all bubbles are worth.