B Cell Aplasia Is the Most Powerful Predictive Marker for Poor Humoral Response after BNT162b2 mRNA SARS-CoV-2 Vaccination in Recipients of Allogeneic Hematopoietic Stem Cell Transplantation

Maxime Jullien, Amandine Le Bourgeois, Marianne Coste‐Burel, Pierre Péterlin, Alice Garnier, Marie Rimbert, Berthe‐Marie Imbert, Steven Le Gouill, Philippe Moreau, Beatrice Mahé, Viviane Dubruille, Nicolas Blin, Anne Lok, Cyrille Touzeau, Thomas Gastinne, Benoît Tessoulin, Sophie Vantyghem, Marie C. Béné, Thierry Guillaume, Patrice Chevallier