Cases of Covid-19 have increased three-fold among 19 to 24 year olds in the past two weeks.
A total of 2,975 new infections were reported today, with 74 Covid deaths in the past week.
Dr Tony Holohan says people haven't reduced their social contacts enough - and is calling for a greater effort:
"If you're planning to do something, and meet up with other people- try and reduce those contacts by half, and if each one of us was doing that, it would have a significant effect we think in terms of transmission. So if you're going planning to go out two nights a week, maybe just go out once. If you're planning to have 10 people over the house for a particular event, maybe just have five during this period of very, very high transmission, because the reality is the opportunity that's been given to the virus by the levels of socialisation from person to person are simply too many."
