Someone the forum say this and sent the link to me - thanks are due to her!
"Conclusions: CID patients treated with immunosuppressive therapies exhibit impaired SARS-CoV-2 vaccine-induced immunity, with glucocorticoids and B cell depletion therapy more severely impeding optimal responses."
This is new work and a preprint - it hasn't yet been peer-reviewed and they took the measurements just 1-2 weeks after the second jab so it is possible it will improve. However, if you are on steroids or methotrexate you cannot afford to be complacent and masks and distancing should remain the order of the day at present.
As the incidence of the virus in the population falls, it will become safer but you cannot assume that because you have had the jab you are safe. We've all got this far - let's not spoil it now.
CID = Chronic Inflammatory Disease (most rheumatic disorders are inflammatory in some way but the crucial point is the effect of corticosteroids on the development of the immune response to the vaccine). The study is mainly relevant to the mRNA vaccines - Pfizer-BioNTech and Moderna. It isn't yet known what happens with the AZ vaccine which hasn't been used in the USA.