MASS vaccination centres for Covid booster doses are being scaled back in Northern Ireland with jabs instead offered in pop-up clinics and local sites.
The development comes as health chiefs renew their appeal for more people to come forward as uptake rates have tailed off since Christmas.
More than 2,800 boosters were delivered at different facilities across the north on Monday when the Titanic Exhibition Centre alone is staffed to administer 4,000 doses a day.
Vaccination staff - many of whom were redeployed - are now going back to their own jobs as the frontline tackles soaring absences linked to Omicron.
To date, a total of 857,909 people have been boosted - equating to more than 53 per cent of those eligible.
Concerns have also been raised about the number of unvaccinated pregnant women requiring hospital treatment after contracting the virus.
Dr Wendy Anderson, a respiratory consultant at the Northern health trust, said she was seeing women in their third trimester "surprised that they're sick".
"I am particularly worried about pregnant women and those over-50s who haven't had any vaccination," she told the BBC.
"It's a worry for me as I know that predicts their course. I have a limited influence if they come in and haven't had a vaccine."
Patricia Donnelly heads up the north's vaccination programme and confirmed opening hours as well as days of operation will reduced on some of the bigger sites.
Mobile clinics will be set up in areas were uptake is lower, while shopping centres will also be used by vaccine teams to delver jabs.
"Localised clinics are very important in reaching people with accessibility issues and helping to provide equal access to boosters," Ms Donnelly said.
"If you want to get your booster at a big centre which currently has plenty of available capacity, don’t delay any further."
