1 Nephrology and Organ Transplant Department, CHU de Toulouse, Toulouse, France. Electronic address: rebecca.lajaunie@hotmail.fr.
2 Department of Virology, CHU de Toulouse, Toulouse, France.
3 Nephrology and Organ Transplant Department, CHU de Toulouse, Toulouse, France; Université Paul Sabatier, Toulouse, France; Centre de Physiopathologie Toulouse-Purpan, Toulouse, France.