Inclusion Criteria:  Adult ≥ 18 years old, Chronic inflammatory arthritis: rheumatoid arthritis, psoriatic arthritis, axial SpA, diagnosed by a rheumatologist Having a negative serology for SARS-CoV-2 infection upon inclusion in COVID-RIC1. Under csDMARD (conventional synthetic Disease-modifying antirheumatic drug), biotherapy, JAK inhibitor or under symptomatic treatment such as NSAIDs or corticosteroids alone or in combination with a DMARD (Disease-modifying antirheumatic drug) Subject having signed a consent Affiliated with Social Security Having accepted or agreed to be vaccinated against COVID-19 (for vaccine group) Having refused to be vaccinated against COVID-19 (for non-vaccine group)  Exclusion Criteria:  Adult patient under legal protection (guardian, curator) Patient vaccinated with an anti-SARS-CoV-2 vaccine before the serological test Refusal to be vaccinated (for vaccine group) Acceptance to be vaccinated (for non-vaccine group)) Refusal to participate in the study Pregnancy and breast feeding