There have been 3,473 PCR-confirmed cases of COVID-19 in Ireland.
Latest figures also show 2,865 people registered a positive antigen test through the HSE portal on Sunday.
That brings Monday's case total to 6,338.
On that basis, the five-day moving average of cases has dropped back to 7,644 - a fall of over 1,000 since last Monday.
As of 8.00am Monday there were 634 patients hospitalised with the virus - of whom 53 are in ICU.
Case numbers for the weekend have also been released.
On Saturday, the Health Protection Surveillance Centre (HPSC) was notified of 4,847 PCR-confirmed cases.
Some 3,076 people registered a positive antigen test through the HSE portal the previous day.
While on Sunday there were 3,351 PCR-confirmed cases of COVID-19 here.
And the HPSC says there were 2,574 positive antigen tests registered through the HSE portal on Saturday.
It comes as all those aged 12 to 15 are to be offered COVID-19 boosters under new plans.
Health Minister Stephen Donnelly has accepted the recommendations from the National Immunisation Advisory Committee (NIAC).
It has recommended that a booster dose of Pfizer/BioNTech be given at an interval of six months or longer since completion of the main vaccinations.
For those aged 12 to 15 years, who have had COVID, the booster should be deferred for at least six months following the onset of infection.