Covid vaccines are being extended to those aged between 25 and 29 in Northern Ireland.
The region's recently hit the milestone of one million people receiving at least one dose.
Next week, restrictions there will be eased further, with pubs able to serve pints indoors.
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Meanwhile, one million Covid-19 vaccines will be administered this month, according to the Taoiseach.
He says 280,000 have been administered in the past week.
Two in every five adults have received at least one dose - but the government's aiming to double that by the end of June.
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48-year-olds can sign up for a vaccine from today.
