Vaccination Against SARS-Cov2 (COVID-19) in Chronic Inflammatory Rheumatism and Factors Determining Its Decision.

Rheumatoid arthritis and spondyloarthritis (ankylosing spondylitis and psoriatic arthritis mainly) are chronic inflammatory rheumatism (RIC), frequently onset in young adults. The prevalence is respectively 0.3 to 0.8% and 0.4%. or about 600,000 people. The "basic" treatments (DMARDs), essential to control the progression of the disease, are classified into csDMARDs (chemical), the first of which is methotrexate, or bDMARDs (biological). These treatments are immunomodulators and there is an increased risk of severe infection under these therapies. Several vaccinations are therefore recommended by learned societies in patients receiving these treatments, in order to prevent certain infectious risks.In the current pandemic context, the vaccination of these patients against SARS-Cov2 is a major issue in their management and is recommended by the French society of rheumatology. However, many patients express doubts about this vaccination or refuse it. The factors associated with the vaccination will are not known. Better identifying them would make it possible to adapt the information to be given to our patients to promote their adherence.