It also includes anyone who is under 70 but has health conditions including chronic mild to moderate respiratory disease, chronic heart, kidney or liver disease, chronic neurological conditions, diabetes or a weakened immune system because of conditions such as HIV and AIDS or medicines like steroid tablets.
@Discobar if you go through the updated info as referred to in your link HIV & AIDS are no longer specifically mentioned as conditions that put certain of us in the clinically vulnerable group. It's recognised that the vast majority in the UK who are stable on meds, decent CD4 count (or no longer taken) are at no greater risk than anyone else.
People with low CD4 or opportunistic illness (such as newly diagnosed) would be advised to shield on the other hand. (source: BHIVA)
Just one example of how variable a condition can be 