There have been calls for the chief executive of the Beacon Hospital to resign after it emerged that "leftover vaccines" were given to 20 teachers from a private school.
Labour leader Alan Kelly has called on Michael Cullen, the CEO of the Dublin hospital, to step down over his "scandalous" actions.
It has since been reported that Mr Cullen personally phoned his children's private school to offer COVID-19 vaccines to staff.
The Irish Daily Mail reports today that he made the call to St Gerard's School in Bray on Tuesday.
The Beacon apologised yesterday for vaccinating 20 teachers and staff at the school with "leftover" doses.
In a statement, the Dublin hospital confirmed there were spare doses that had to be used at short notice, and some were given to teachers.
Mr Cullen "sincerely apologised for the upset that this decision has caused" and said he recognised "that the decision that was made was not in line with the sequencing guidelines in place from the HSE".
It was later revealed that crèche workers also received so-called leftover vaccines from the Beacon.
Speaking to Newstalk, Phillip Watt, Chairperson of the Irish Donor Network and CEO of Cystic Fibrosis Ireland said "it really is very undermining for this type of thing to happen".
"It's just so disappointing that two institutions, a school and a hospital, have not adhered to the standards and principles set out by the HSE," he said.
"I know people will say it's only 20 people and 20 vials and so on, but I think it's the principle involved and I think we need explanations from both institutions involved."
Mr Watt explained that many in the Cystic Fibrosis community have been cocooning for the past year, some of whom have had to quit their jobs, so the Beacon revelations are "really raw" for them.
He welcomed the fact that medically vulnerable people have been moved up the priority list for vaccinations.
However, he said: "I really think the school and the hospital need to do more, maybe to volunteer some sort of atonement or some sense of acknowledgement that wrongdoing has been done."