There are calls for a national survey of teachers to be carried out before the start of the new school year.
It's following concerns that some teachers with underlying conditions may not be in a position to return to the classroom.
Waterford Independent Deputy Matt Shanahan raised the matter at the Dáil's Covid-19 Special Committee.
"The schools are talking about implementing the infectious control protocols.
"Have any of the organisations present taken a head count of the teachers who may, potentially, have underlying health issues and thus excuse themselves from teaching duties, particularly in the case of a resurgence of Covid?"
President of the National Association for Principals and Deputy Principals is Alan Mongey.
"In terms of post-primary level, at this stage there has been no staff survey.
"The Department of Education and Skills should conduct a survey to ascertain the level and need in order to support teachers who may not be in a position to return to work."
Meanwhile, another Waterford TD has praised the enormous amount of work being done by school leaders.
The Green Party's Marc Ó Cathasaigh, himself a former primary school teacher, also highlighted the work of Special Educational Needs teams.
"I am keen to acknowledge the extraordinary work that is being done by school leaders.
"The principal in my local school has told me that even though he is wandering empty corridors, he has never been as busy as he has been this year.
"All of this is unseen work and it deserves to be acknowledged. The same is true of the engagement, especially by SEN teams, to keep these most vulnerable children in contact with schools. It has been highly valuable work and mostly unseen. It deserves to be acknowledged."
