The Chief Medical Officer's urging people with Covid-19 symptoms to stay at home, even if they're vaccinated.
Dr Tony Holohan says there's a risk they could still transmit the illness.
1,015 new cases were confirmed here yesterday, while 178 people are in hospital - up 25 percent in a week.
Dr Holohan says outbreaks are occurring from people with symptoms attending workplaces, eating out or visiting friends.