%0 Journal Article %A Piñana, José Luis %A López-Corral, Lucia %A Martino, Rodrigo %A Montoro, Juan %A Vazquez, Lourdes %A Pérez, Ariadna %A Martin-Martin, Gabriel %A Facal-Malvar, Ana %A Ferrer, Elena %A Pascual, María-Jesús %A Sanz-Linares, Gabriela %A Gago, Beatriz %A Sanchez-Salinas, Andrés %A Villalon, Lucia %A Conesa-Garcia, Venancio %A Olave, Maria T %A López-Jimenez, Javier %A Marcos-Corrales, Sara %A García-Blázquez, Marta %A Garcia-Gutiérrez, Valentín %A Hernández-Rivas, José Ángel %A Saus, Ana %A Espigado, Ildefonso %A Alonso, Carmen %A Hernani, Rafael %A Solano, Carlos %A Ferrer-Lores, Blanca %A Guerreiro, Manuel %A Ruiz-García, Montserrat %A Muñoz-Bellido, Juan Luis %A Navarro, David %A Cedillo, Angel %A Sureda, Anna %A Infectious Complications Subcommittee of the Spanish Hematopoietic Stem Cell Transplantation and Cell Therapy Group (GETH-TC) %T SARS-CoV-2-reactive antibody detection after SARS-CoV-2 vaccination in hematopoietic stem cell transplant recipients: Prospective survey from the Spanish Hematopoietic Stem Cell Transplantation and Cell Therapy Group. %D 2021 %U http://hdl.handle.net/10668/19952 %X This is a multicenter prospective observational study that included a large cohort (n = 397) of allogeneic (allo-HSCT; (n = 311) and autologous (ASCT) hematopoietic stem cell transplant (n = 86) recipients who were monitored for antibody detection within 3-6 weeks after complete severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccination from February 1, 2021, to July 20, 2021. Most patients (n = 387, 97.4%) received mRNA-based vaccines. Most of the recipients (93%) were vaccinated more than 1 year after transplant. Detectable SARS-CoV-2-reactive antibodies were observed in 242 (78%) of allo-HSCT and in 73 (85%) of ASCT recipients. Multivariate analysis in allo-HSCT recipients identified lymphopenia %~