The Taoiseach has said everyone should now work from home unless it's absolutely necessary.
Micheál Martin has confirmed premises, including bars, restaurants and nightclubs, will have a new closing time of midnight from Thursday.
All household close contacts will have to restrict their movements for five days and do antigen testing under new rules announced tonight.
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Micheál Martin confirmed a booster campaign for all over 50s and under 60s with an underlying condition will now be rolled out.
In a State of the Nation address, the Taoiseach says action needs to be taken now to deal with the surge in cases and the impact on the health service:
