613 new people tested positive for Covid-19 and ten more patients are known to have died.
We're being warned this week's new infections represent "a significant escalation" in the coronavirus outbreak here.
The latest daily figures from the National Public Health Emergency Team have again broken all records since April.
224 cases are in Dublin, 58 in Donegal, 46 in Cork, 44 in Kildare,31 in Limerick, 28 in Laois, 21 in Kerry, 19 in Galway, 17 in Clare, 13 in Meath, 12 in Louth, 12 in Monaghan, 9 in Offaly, 9 in Tipperary, 9 in Wicklow, 8 in Cavan, 8 in Wexford, 7 in Carlow, 7 in Sligo, 7 in Roscommon, 6 in Mayo , 5 in Kilkenny, 5 in Westmeath, with the remaining 7 cases in 3 counties.
37,668 people are now known to have contracted the virus, and 1,810 people have died.
In the last three days alone close to three and a half thousand people on the island of Ireland have been infected.
The Acting Chief Medical Officer Dr Ronan Glynn is urging those over seventy to limit their contacts to a "very small core group" of family members, carers or friends.
He says people in this group should limit the duration of any visits and stay physically distant too.