The Taoiseach has said there is always concern around new Covid variants emerging as he urged people to get their vaccine boosters.
It was confirmed at the weekend that two cases of a newly classified variant of concern had been detected in Ireland.
On May 12 the European Centre for Disease Prevention and Control (ECDC) reclassified two sub-lineages of the Omicron variant of Covid-19, BA.4 and BA.5, from variants of interest to variants of concern.