I found this it’s part of a press release from the government, the heading is
Press release
Most vulnerable to be offered spring COVID-19 booster
JCVI advises vaccine top-up for over-75s, immunosuppressed and residents in care homes for older adults.
The Joint Committee on Vaccination and Immunisation (JCVI) has confirmed its advice for a 2023 spring coronavirus (COVID-19) booster programme.
In January 2023, the committee advised preparations should begin for potential booster programmes in spring and autumn this year, with further details to be announced at a later date.
The committee has since advised that a spring booster dose should be offered to:
adults aged 75 years and over
residents in a care home for older adults
individuals aged 5 years and over who are immunosuppressed
Eligible individuals will be offered the vaccine around 6 months after their previous dose and NHS England will confirm operational details for the programme in due course.
Lower down it states
Professor Wei Shen Lim, Chair of the JCVI’s COVID-19 Committee, said:
Vaccination remains the best way to protect yourself against COVID-19 and the spring booster programme provides an opportunity for those who are at highest risk of severe illness to keep their immunity topped up.
This year’s spring programme will bridge the gap to the planned booster programme in the autumn, enabling those who are most vulnerable to be well protected throughout the summer.