[xyzzy123]

Right but it doesn't prevent infection or transmission for more than a couple of months.

> If vaccinating under fives reduces the risk to preschool carers and enables us to maintain higher preschool capacity

I agree, but this is also not known.

Any broader public health benefits are theoretical at this point. They don't seem to have been measured or even modelled.

[jameshart]

Vaccination (and masking and distancing) are the only things we really can try to reduce transmission.

[toomim]

You're ignoring ventilation, air filtration, sanitization, quarantining, and a bunch of other things.