There have been 14,655 new cases of COVID-19 reported in Ireland.
Latest figures show there were 4,024 PCR-confirmed cases today.
While yesterday, 10,631 people registered a positive antigen test through the HSE portal.
As of 8am, 1,308 patients are hospitalised with the virus - of whom 49 are in ICU.
On Thursday March 17th, the Health Protection Surveillance Centre (HPSC) was notified of 5,231 PCR-confirmed cases - with 8,322 people registering a positive antigen test the previous day.
On Friday, there were 5,628 PCR-confirmed cases - with 6,313 people registering a positive antigen test through the HSE portal on Thursday.
For Saturday, the HPSC was notified of 4,787 PCR-confirmed cases of COVID-19.
While 6,774 people registered a positive antigen test through the HSE portal on Friday.
And on Sunday March 20th, there were 5,067 PCR-confirmed cases of COVID-19 here.
Some 7,177 people also registered a positive antigen test through the HSE portal on the Saturday.
It comes as Dr Denis McCauley, chairman of the Irish Medical Organisation's GP Committee, said the rising numbers of cases show that earlier public health measures did work.
He said: "It just shows the public health measures did work.
"The fact that we're dealing with a very infectious virus, that as soon as we take away the public health measures the rates start to go up significantly.
"So the public health measures work, we know that now - we've always known it, but we know it well".
And he said the question of mask wearing should now be between 'mandatory and manners'.
"Manners should really extend that - I think we should realise that... we are free, we're relatively free now.
"But I think we should respect those around us: if we're in an area where there are a number of people, that is crowded - particularly indoors - even outdoors, you should consider wearing a mask.
"I always sort of said 'until the end of March' anyway - but I think until we see the numbers beginning to go down".