14 people are in ICU with the virus.
As of midnight on Sunday 4 July, the Department of Health has been notified of 365 new cases of Covid-19 across Ireland.
Of the 365 cases, 51 are in hospital and 14 are in intensive care units throughout the country.
According to the Department, daily case numbers may change due to future data review, validation and update.
Minister for Health Stephen Donnelly has confirmed that half of Ireland's adult population will be fully vaccinated against Covid-19 by the end of today.
Confirming the news on Twitter on Monday, Donnelly said: "By the end of today, half our adult population will have full vaccination.
"This will continue to grow in the days and weeks ahead. It's important that everyone continues to ensure they get their second dose."
It comes as a
public health expert has said that he believes that a fourth wave of the Covid-19 virus has already begun in Ireland as case numbers climbed to their highest in over two months on Sunday.
Speaking to Newstalk after 562 new cases of the virus were reported across Ireland on Sunday, Professor Sam McConkey said that it was already "the beginning of the fourth wave".
The Infectious Disease Specialist and head of the Department of International Health and Tropical Medicine at the RCSI University of Medicine and Health Sciences said that he is hopeful the wave will be "much less traumatic" than the first three.
"My views for the last 15 or 16 days cases have gradually started to rise, we have an R [number] currently of about 1.2 - and this is the beginning of a fourth wave," he said.
"I'm hoping, having said that, that it will be much much less traumatic to us as a country and as individuals here than the previous first, second and third wave.
"I'm hoping that, following the UK, there'll be much less hospitalisation, much less ICU admission and hopefully much less rate of death".
