The PM will outline plans for booster jabs after the UK’s vaccine advisory body unveiled its guidance yesterday.

Officials are looking at measures that could be needed if cases rose steeply. But government sources have said further lockdowns are not being considered. Mr Johnson’s Covid plan is set to follow an announcement by the Joint Committee on Vaccinations and Immunisation (JCVI) on who should receive booster jabs.

The JCVI said last week that a third vaccine dose should be offered to people over the age of 12 with severely weakened immune systems – which accounts for up to half a million people in the UK.
It came after research showing about 40% of people with weakened immune systems had a low antibody response, and potentially less protection, after two vaccine doses.

The advice means the most vulnerable – less than 1% of the population – will be offered a third dose, rather than all those on the original list of clinically extremely vulnerable people