With Covid rates rising across the country - and one reason behind this potentially being waning immunity for people who've previously had a vaccine - a roll-out of a fourth jab has long been considered inevitable.
Health Secretary Sajid Javid announced that the Joint Committee on Vaccination and Immunisation had recommended the roll out of a "spring booster" to certain groups on February 21 - which was also the day the Government revealed its Living With Covid strategy.
Now, it's understood that preparations for the beginning of a fourth jab campaign are well under way.
