UK experts are set to recommend all 16 and 17-year-olds should be offered a Covid vaccine, the BBC has been told.
The Joint Committee on Vaccination and Immunisation stopped short of making the move last month, saying it was still assessing the benefits and risks.
About 1.4 million teenagers will be included in the new rollout but it is not known when the jabs will start.
But some countries, including the US, Canada and France, are routinely vaccinating people aged 12 years old and over.
Whitehall sources say ministers in England are expected to accept the advice of the JCVI, following an announcement on Wednesday.
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