Abstract
Vaccination against COVID-19 is one of the critical tools to provide herd immunity, reduce mortality, and control the pandemic worldwide. Despite the safety of vaccination against SARS-CoV-2 in the healthy population, a minority of people may develop rare post-vaccine adverse reactions such as autoimmune syndromes. The current study aimed to identify and present a series of patients with de-novo autoimmune rheumatic diseases (ARDs) associated with COVID-19 vaccines. Inclusion criteria were the onset of ARDs symptoms at ∼3–4 weeks post-vaccination, age ≥ 16, no previous history of ARDs, meeting the classification criteria for one of the ARDs, and staying in the follow-up. The most commonly used vaccines in patients were Sinopharm [7 cases (50%)] and AstraZeneca [6 cases (42.9%)]. ARDs were significantly more common in subjects who received the AstraZeneca vaccine than in those who received other vaccines. Based on the results, patients were diagnosed with rheumatoid arthritis or one of its subtypes (5 cases), vasculitis (4 cases), systemic lupus erythematosus (3 cases), and peripheral seronegative spondyloarthritis (2 cases). Except for one patient with self-limitation of ARD, others were treated with disease-modifying antirheumatic drugs, and one case developed irreversible neurological complications. Indeed, our data can warn physicians about the possibility of ARDs post-vaccination, lead to faster diagnosis, prevent loss of window of opportunity for treatment, and prevent irreversible organ damage. Based on the published literature, autoimmune phenomena post-COVID‐19 vaccination may be related to the overstimulation of mediators and cytokines due to complicated antigen-specific/non-specific immunological responses and mechanisms.
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