People taking immunosuppressant produce weaker, shorter-lived antibodies after COVID-19 vaccination

People who received two doses of the Pfizer COVID-19 vaccine while on TNF inhibitors -; a class of immunosuppressants used to treat rheumatoid arthritis and other autoimmune conditions -; generated less powerful and shorter-lived antibodies against the virus that causes COVID-19 than healthy people and those on other kinds of immunosuppressants, according to a study by researchers at Washington University School of Medicine in St. Louis.