In a study of 1,377 patients with rheumatic and musculoskeletal diseases—such as inflammatory arthritis and lupus—flares of their conditions were uncommon following two-dose COVID-19 mRNA vaccination. In a study of 1,377 patients with rheumatic and musculoskeletal diseases—such as inflammatory arthritis and lupus—flares of their conditions were uncommon following two-dose COVID-19 mRNA vaccination.
In the Arthritis & Rheumatology study, 11% of patients reported flares after vaccination that required treatment, and there were no reports of severe flares. Flares were associated with prior SARS-CoV-2 infection, flares in the six months preceding vaccination, and use of combination immunomodulatory therapy.
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