Covid booster vaccine to be offered to millions in England next week.
About 5 million people will be eligible for a booster until the end of June, including those aged 75 and over and anyone aged five and over who is immunosuppressed.

https://www.theguardian.com/world/2023/apr/01/covid-booster-vaccine-offered-millions-england-spring-care-home-residents-infections?s=09
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