Confirmed SARS-CoV-2 infection (current or previous) Women who are pregnant (self-reported, participants will be asked -when in doubt- to perform a pregnancy test before study entry) Current use of prednisone >10mg/day, conventional DMARDs (except hydroxychloroquine) or biological DMARDS. Previous use of DMARDs ≥6 months before inclusion (≥12 months for rituximab) is allowed.

Confirmed SARS-CoV-2 infection (current or previous) Women who are pregnant (self-reported, participants will be asked -when in doubt- to perform a pregnancy test before study entry) Current use of prednisone >10mg/day, conventional DMARDs (except hydroxychloroquine) or biological DMARDS. Previous use of DMARDs ≥6 months before inclusion (≥12 months for rituximab) is allowed.