I put a post on here about the worries of having routine tests done amongst others and high risk hospital outbreaks etc...
There now is a LOT of empty public buildings with that 2mtr spacing rule easily implemented. An idea, I don't know how effective, but if they're calling medical professionals to come back to work, why can't the schools, leisure centre halls etc...be set up to use as blood tests for the vulnerable with monthly assessments and appointments? You can easily put seats and spacing apart in these buildings, because right now where I live, the hospitals are not safe to go because of high cases and GP surgeries are mainly doing telephone consultations.
People could go to these makeshift buildings; appointment only and stay isolated.
There's not much point being isolated in your home, only to have an appointment with others sat close together or putting yourself at risk.
The vulnerable groups are getting forgotten in this crisis but their conditions don't and won't take a break for 3+ months. They still need to be maintained safely!