Methotrexate reduces immune response to mRNA COVID-19 vaccine

Up to a third of patients taking methotrexate fail to achieve an adequate immune response to mRNA COVID-19 vaccines, a small observational study reports. Published in the Annals of the Rheumatic Diseases the trial involved 51 patients with rheumatoid arthritis, psoriatic arthritis or psoriasis who were taking methotrexate, anti-TNFs or biologics from New York University ...

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