Trinity Professor disagrees with Government claims.
A public health expert doesn't believe 90 per cent of the population will be vaccinated this side of Christmas.
It's after the Taoiseach Micheal Martin said close to 90 per cent would be vaccinated by September 6th.
However, Trinity College Dublin Associate Professor Tomás Ryan says this figure is only for the adult population and doesn't include children.
He says children are at high risk of catching Covid as they aren't vaccinated