The Department of Health has been notified of 348 new cases of Covid-19.

The number of people in intensive care units is 13, which is unchanged from yesterday.

There are 41 people being treated in hospital for the virus.

The department advised that daily case numbers may change due to future data review, validation and update.

Earlier, Tánaiste Leo Varadkar said the Government will consider giving spare AstraZeneca vaccines to over-18s if advised to do so by the National Immunisation Advisory Committee (NIAC).

Mr Varadkar said Ireland will have more AstraZeneca vaccines than it needs in the coming weeks and that NIAC is currently considering if it could offer them to younger people who are awaiting vaccination.

He said it would be a shame not to use the hundreds of thousands of excess doses that Ireland will have and while the issue of what to do with them does not arise yet, it will in the coming weeks.

Elsewhere, the Government and health officials have expressed concerns on the impact from the spread of the Delta variant on plans to further re-open society next month.

Minister for Health Stephen Donnelly said the National Public Health Emergency Team will do a detailed analysis and, combined with an economic and social analysis, the Cabinet will make an informed decision next week.

At tonight's meeting of the Fine Gael parliamentary party, Mr Varadkar told his colleagues that there is increased concern over the delta variant.

He acknowledged that case numbers were stable and hospital numbers were flat but he said the variant remains a big concern.

The rising case numbers in the UK were "worrying", he said.

Mr Varadkar said nothing has been decided yet around further reopenings in July.

Today, the European Centre for Disease Control (ECDC) said the Delta variant will represent 90% of all Covid-19 cases in the European Union by the end of August.

Speaking on RTÉ's Six One News, Principal Expert for Emergency Preparedness and Response at the ECDC Dr Agoritsa Baka said there is cause for concern about the Delta variant at present, as there are still high-risk groups that are not fully vaccinated.

Dr Baka said that anyone who is not fully vacccinated and still at high risk of severe Covid should ensure they are vaccinated as soon as possible.

She said that the evidence to date is that one dose is effective in preventing against hospitalisation. However, those who are older and who have other medical conditions may not have this level of protection.

She said that even though it was expected that over the coming weeks restrictions would be relaxed considerably, she called on governments to refrain from relaxing public health measures too quickly.

Dr Baku said that risk modelling clearly shows that a relaxation of restrictions that is too fast will result in a rapid increase in cases in July.