The Johnson and Johnson and AstraZeneca vaccines have been approved for use in people over the age of 50.
Cabinet ministers signed off on the move this morning following advice from the National Immunisation Advisory Committee.
The single-shot Johnson and Johnson jab can also be used for under-50s when other vaccines are not available.
Meanwhile, women between 14 and 36 weeks pregnant are to be offered faster access to a Covid vaccine following new advice.
Health minister Stephen Donnelly says officials are now working out when they can get the vaccine.......