A quarter of all new cases of Covid-19 in the last two weeks have been among younger people aged between 15 and 24.
The latest 14-day report from the Health Protection Surveillance Centre looks at the incidence of the virus between midnight on 13 September up until midnight on Saturday 26 September.
During this time, there were 4,022 new cases of the virus reported.
The median age of people with the virus is 32.
Ireland now has a 14-day cumulative number of cases of 81.7 for every 100,000 people, according to the European Centre for Disease Control.
It compares with 99.7 for the UK.
Spain continues to have the highest rate at 319.9 with France on 235.
A closer look at the breakdown of ages here, shows there were 114 cases in young children aged between 0 and 4, while a further 325 cases occurred in children between 5 and 14.
The highest number of cases reported in this two-week period is among 15 to 24-year-olds with 984 cases among that age group.
There were also 708 cases among the 25 to 34-year-olds, 576 cases in the 35 to 44 age bracket, 552 among the 45 to 54-year-olds, 375 in the 55 to 64 age group, 236 cases among 65 to 74-year-olds and 106 cases in the 75 to 84 group.
There were just 44 cases recorded among people aged over 85.
Geographically, Donegal still has the highest incidence rate of the virus in the country at 185.3.
This is measured as the number of cases per 100,000 of the population.
Donegal is followed by Dublin (152.9), Louth (104) and Monaghan (92.9).