TBM, for what it is worth I have huge sympathy for your situation, which I suspect is one of the highest risk environments to work in. You have no ability to impose any genuine degree of social distancing and there is no option to impose any form of PPE. The mortality risk for the kids may be statistically low, but this does not apply to the staff.
Up until September my wife worked at a special needs school, but following a recent round of "management of change" otherwise known as work more hours and we will pay you less she concluded that there is more to life than being treated badly whilst working in a high risk environment. I suspect she will not be alone.
