vaccine in a 'mix and match' approach, according to reports. Switching up jabs with a third shot later in the year will help protect against new variants and ease supply demand, according to a leaked memo seen by The Mail on Sunday.
It is hoped the "booster" phase can begin by autumn when two more vaccines - Valneva and Novavax - are expected to have been approved, according to the memo.
The guidance, which is reportedly being circulated among senior health officials, says: "It is likely people will be recommended to receive a different brand of vaccine to the brand they received previously during this inaugural programme".The booster jab rollout is also expected to follow the same priority list as the original jabs, with those most at risk.
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