Have just been reading some threads about reactions to the vaccines. Some people don't seem to have any after-effects whereas others feel quite unwell. Both DH and I have had our first, him Pfizer, me AstraZeneca, with no reactions, but neighbours have reported feeling a bit ropey.
It got me to wondering if this is something to do with an individuals existing immune system? Would a weak immune system promote a stronger reaction as it has more work to do, or does a stronger immune system react more robustly to a new threat being introduced into our bodies?
There is probably nothing in it and just a question of luck, but I just wondered if any of the clever people on here had any thoughts/ information on the matter.
I think the research behind and the production of these vaccines has been little short of a miracle.
Hope people understand what I am getting at - not very good at explaining what I mean.