Prime Minister Boris Johnson implemented plans to offer a third vaccine to all adults by the end of the month.
Some medical appointments are set to be postponed to focus on the booster rollout.
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Statistics from NHS England and The Office for National Statistics estimate the proportion of residents over 40 with a booster jab.
The data is split between local authority, and the percentage of the population with a third jab varies across Hampshire.
Here are the local authorities in Hampshire with the highest proportion of people with a third dose.
Click through all the pages to find out which area has the most.