Johnson and Johnson's Covid-19 vaccine could be approved for use in the EU today.
The European Medicines Agency will consider authorising the injection, which is single-dose and easier to store than most other vaccines.
It has an efficacy of 66 percent but is 100 percent effective at preventing hospitilisations and death.
Ireland's due to get 2.2 million doses of the vaccine this year.
Meanwhile, NPHET will meet later to discuss nursing home visits and if there can be a 'vaccine bonus' for residents in the coming weeks.
Any measures will likely form part of new recommendations to government ahead of the expected easing of restrictions in April.
It comes as a further 631 new Covid-19 cases have been reported, along with 47 deaths.