I didn't know this so I'm guessing others may not either.
Unpaid carers under the age of 65 will be prioritised in Group 6 for the COVID-19 vaccine. Carers aged 65 and above will be able to access the vaccine earlier under the initial groupings.
All I did was ring my GP and ask for my husband to be flagged as my unpaid carer.
Here's the link to the article.