Vaccine boosters for the over 60s and healthcare workers will be considered by the National Immunisation Advisory Committee later.
The body, which advises the government on vaccines, will meet today to look at expanding the Covid vaccine rollout.
Currently only people over 80 and those over 65 in nursing homes can avail of a third jab.
Leading immunology expert Professor Kingston Mills from Trinity College Dublin outlines who should be next in line for a booster.
"We need to boost those that got the Johnson and Johnson vaccine, the AstraZeneca vaccine and the older population over 60.
"They are the ones with weaker immunity."
