1. Dermatology Department AP‐HP Hôpital Saint‐Louis F‐75010 Paris France
2. Université de Paris Human Immunology Pathophysiology Immunotherapy INSERM U976 Institut de Recherche Saint‐Louis F‐75010 Paris France
3. Pathology Department AP‐HP Hôpital Saint‐Louis F‐75010 Paris France
4. Université de Paris Imagine Institute Laboratory of Immunogenetics of Pediatric Autoimmune Diseases INSERM U1163 F‐75015 Paris France
5. Department of Internal Medicine National Reference Centre for Rare Systemic Autoimmune Diseases AP‐HP, Hôpital Cochin F‐75014 Paris France
6. Université de Paris PARCC INSERM F‐75006 Paris France
7. Emergency Department AP‐HP Georges Pompidou European Hospital F‐75015 Paris France
8. Immunobiology Department AP‐HP Hôpital Saint‐Louis F‐75010 Paris France
9. Institut Pasteur Virus and Immunity Unit F‐75015 Paris France
10. Institut Pasteur Translational Immunology Lab F‐75015 Paris France
11. Institut Pasteur, Cytometry and Biomarkers UTechS CRT F‐75015 Paris France
12. Université de Paris Innovative Therapies in Haemostasis INSERM F‐75006 Paris France
13. Institut Curie Cytometry Platform F‐75006 Paris France
14. Biological Haematology Department AP‐HP Hôpital Lariboisière F‐75010 Paris France
15. Université de Paris EA3518 Institut de Recherche Saint‐Louis F‐75010 Paris France
16. Université de Paris INSERM UMR S1140 F‐75010 Paris France
17. Université de Paris Imagine Institute Laboratory of Genetics of Skin Diseases INSERM U1163 F‐75015 Paris France
18. Virology Department AP‐HP Hôpital Saint‐Louis F‐75010 Paris France
19. Université de Paris Team Insight INSERM U976 Institut de Recherche Saint‐Louis F‐75010 Paris France
20. Hematology Department and Biosurgical Research Lab (Carpentier Foundation) Assistance Publique Hôpitaux de Paris‐Centre Université de Paris (APHP‐CUP) F‐75015 Paris France