The government's target of getting 700,000 people vaccinated by March may be missed because of an under-delivery from AstraZeneca.
Health Minister Stephen Donnelly has said they don't know how many doses of the vaccine will be delivered after mid-March.
That could also lead to a delay in the target of getting every resident vaccinated by September.
Health Minister Stephen Donnelly says the government is in discussions about getting as many vaccine doses as possible.
