A secondary teachers union say the Covid situation in schools is "quite worrying".
Up to 12,000 children are restricting their movements due to being a close contact of someone with Covid 19.
That's based on around 700 primary schools and 500 secondary schools reporting a Covid-19 case.
At primary school level, each case has an average of 15 close contacts, and around four in secondary schools.
Advertisement
Kieran Christie, General Secretary of the Association of Secondary Teachers in Ireland, says more data will emerge over the next week or so.