The Chief Medical Officer has called on hospital managers to uphold the "highest standards" in administering Covid-19 vaccines.
There's been criticism of two Dublin hospitals after it emerged a small number of staff family members were given leftover doses.
The Rotunda and the Coombe have both said it was to ensure none were wasted.
New guidance issued recently requires hospitals to have a standby list of 120 healthcare workers for any leftover doses.
Dr Tony Holohan says hospitals need to ensure the jabs are distributed to the highest priority groups: