My father in law 76 has developed rheumatoid arthritis which he developed after treatment for prostate cancer last March and has immune suppressing treatment so has been shielding. Mother in law received the Pfizer vaccine last Saturday but he was given AstraZeneca version.
He was running 2 years ago but won't get an intensive care bed if he gets ill now.
I can't get enough of this and am really looking forward to next winter's wave.