The five-month gap between a person's second COVID-19 vaccine dose and booster jab could be reduced.
Health Minister Stephen Donnelly is considering the move, as the Government looks at ways of increasing immunity to the Omicron variant.
Currently, the gap between doses is at least five months (or three months for those who previously received the one-shot Janssen vaccine).
However, some experts have called for the gap to be reduced to three months - similar to what has happened in the UK.
There has been an increased focus on boosters in the last few weeks, as early research suggests a third vaccine dose offers strong protection against the Omicron variant.
It comes as the HSE has urged people waiting for boosters to remain calm following large queues outside walk-in centres in recent days.
Hundreds of people were turned away from UCD during the week after the centre reached capacity, with long wait times also reported at other clinics.
Queues of over two hours were reported at some centres on Saturday.
Walk-in vaccination centres open across the country again today, with full details available on the HSE website.
The HSE is also offering live queue updates on its Twitter feed.
Boosters are currently being offered to people aged over 50, as well as healthcare workers and people with underlying health conditions.
