On recommendation from a relative who is a bio-chemist, I bought and took an antibody test 3 weeks following my 2nd dose of Pfitzer vaccine. I tested negative for antibodies to the Spike Protein in the vaccine which should show as positive.
They have just sent me details of several studies published in the US Journal of the American Medical Association demonstrating that about 40% of those with deficient or suppressed immune systems don’t develop antibodies after vaccination.
This would include people taking meds to suppress the immune system for things like RA, IBS, psoriasis and other types of autoimmune diseases should not alter their caution regarding mask wearing, hygiene and social distancing.
Further studies are taking place in transplant centres but I have combed the press for report and in the UK - Zilch!
Those of us with immune suppression - please be aware and get tested if you can and don’t assume you will develop immunity and don’t let your guard down.
I can’t find the studies but were conducted but the lead researcher was Hani Wadei at the Mayo Clinic Transplant Center.
Everyone I spoke to - including my GP - is very surprised when I told them I tested negative. My view is that at least I know so I won’t be changing my behaviour, continuing to be very careful, not mixing and always wear a mask in public.