The Government has banned household visits across Ireland except for essential reasons or on compassionate grounds.
The new measures, decided on at a Cabinet meeting on Wednesday night, will come into effect from midnight on Thursday.
It is understood that childcare and compassionate visits will be exempt from the new measures.
The move comes after lockdown measures were imposed in Northern Ireland for four weeks, following an exponential increase in Covid cases.
Cabinet met on Wednesday to discuss the lockdown measures imposed north of the border, with the possibility of imposing Level Four restrictions on the border counties of Donegal, Monaghan and Cavan.
In Ireland, there were 1,095 new cases of Covid-19 and five further deaths confirmed by the National Public Health Emergency Team on Wednesday.
Almost 120 of the new cases of Covid-19 were confirmed in Cork.
Some 118 of these new cases were in Cork while there were also 246 in Dublin, 185 in Meath,128 in Cavan, 63 in Kildare and the remaining 342 cases are spread across all remaining counties.
Chief Medical Officer, Dr Tony Holohan, said:
“This situation is extremely concerning.
“Every single one of us has a role to play,” he added.
Dr Ronan Glynn urged people to avoid meeting in groups.
“Stop meeting up in groups, stop socialising, stop organising playdates, parties and other social activities,” he said.
“People must recognise that the disease is a direct threat to themselves and their families.
“Now is the time for each of us to act,” he added.