The UK government is planning to introduce emergency laws next week to ban mass gatherings in a bid to try to curb the spread of coronavirus.
So far, ministers have resisted such a move even though some major sporting events including the London Marathon and all Premier League matches have already been postponed.
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Ireland is to close all schools and childcare facilities and other public spaces like museums, while Scotland has banned gatherings of more than 500 people.
Eleven people have died in the UK after contracting COVID-19, the disease caused by coronavirus, and the number of confirmed infections has reached 798 - an increase of 208 over the last 24 hours.
A Whitehall source said the government has drafted emergency legislation to stop mass gatherings and compensate organisations.
The source said: "Ministers are working with the chief scientific adviser and chief medical officer on our plan to stop various types of public event, including mass gatherings, beginning next week.
"We are also talking to businesses and other bodies about the timing of moving towards much more widespread working from home."
Irish deputy prime minister Simon Coveney criticised the UK government this week for allowing the Cheltenham Festival to go ahead.
Tens of thousands of horse racing fans attended Prestbury Park for the showpiece event despite the global coronavirus pandemic.
The Whitehall source said the government, in dealing with coronavirus, has been "concerned" about the burden large events put on public services including the NHS and police.
The source added: "We have drafted emergency legislation to give the government the powers it needs to deal with coronavirus, including powers to stop mass gatherings and compensate organisations. We will publish this legislation next week."
Prime Minister Boris Johnson introduced new measures on Thursday as the government's coronavirus response escalated to the second phase - moving from trying to contain the virus to delaying its spread.
Anyone with a new persistent cough or a high temperature will now have to self-isolate and stay at home for seven days, and schools are being urged to cancel planned trips abroad.
Coronavirus - key sporting developments
- Premier League, EFL, FA Cup and Women's Super League suspended
- Champions League and Europa League matches postponed
- England Test series in Sri Lanka postponed
- Golf's Players Championship is cancelled
- F1 cancels Australian GP
- Coronavirus: NFL teams suspend travel
- NBA season suspended "until further notice"
- Euro 2020 likely to be postponed by UEFA
- ATP Tour suspended for six weeks
- PRO14 season postponed until further notice