But how many people in Yorkshire have already had theirs - and how many are yet to have theirs? Here, we look at the most recent available stats for every Yorkshire local authority.
17. Sheffield
A quarter of Sheffield's population have had the jab - 121,356. That still means there are more than 360,000 people yet to have their third dose.
18. Wakefield
A total of 85,137 Wakefield residents have had their third dose, with almost 200,000 still to get theirs.
19. York
Last but not least, York has given third doses to 46,588 people - with 131,716 yet t have their booster vaccine.