BBC News
By Marie-Louise Connolly
Published
image copyrightReuters
image captionPeople who have already received their first jab using AstraZeneca will get their second jab with the same vaccine
The Department of Health has said people aged under 40 in NI will be offered the Pfizer-BioNTech jab.
Health officials have urged people to keep coming forward for their Covid-19 vaccine.
The change is not a result of new information on the vaccine's link to rare blood clots.
This latest decision is because the risk from Covid-19 is falling, which alters the risk/benefit calculations for younger age groups.
While this policy currently applies to those under 30, the Joint Committee on Vaccination and Immunisation (JCVI) has decided to move the age threshold after new and slightly increased figures on clots were reported.