Breakthrough Covid‐19 infections in vaccinated recipients of allogeneic stem cell transplantation. Issue 3 (14th July 2022) - Fourati, Slim; Robin, Christine; Rodriguez, Christophe; Leclerc, Mathieu; Beckerich, Florence; Pawlotsky, Jean‐Michel; Redjoul, Rabah; Maury, Sébastien