Longitudinal, cas-control study, observational multicenter study based on a cohort of 200 SARS-CoV-2 seropositive patients with chronic inflammatory rheumatisms (CIRs) from the COVID-RIC-1 cohort.~The follow-up the persistence of SARS-CoV-2 serological status for 2 years in 200 patients with inflammatory rheumatisms compared to matched 100 healthy controls to evaluate the impact of immuno-suppressive therapy will be proposed.~Schedule: 4 visits over a 24-month period.~An observational routine care study was initiated in 16 French hospitals to assess the SARS-CoV-2 seroprevalence in France in a population with CIRs (Covid-RIC-1). The project plans to screen 5000 CIRs patients. The COVID-RIC-2 study will thus be proposed to these pre-screened subjects according to their positive status in the serology for SARS-CoV-2 at the time of their inclusion in COVID-RIC-1.~For the control group, 100 health professionals participating in the COVID-BIOTOUL cohort will be selected to be matched on age, gender, and the time between the date of infection with Covid-19 and the first serology of CIR patients.
Accurate knowledge of the humoral immune responses induced by SARS-CoV-2 in patients undergoing immunosuppressive therapy is essential to guide recommendations for infected patients and for vaccination policy for uninfected immunosuppressed patients.