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Updated: Nov 21, 2025

Generation of Multivirus-specific T Cells to Prevent/treat Viral Infections after Allogeneic Hematopoietic Stem Cell Transplant
Published on: May 27, 2011
Convalescent hyperimmune plasma for chemo-immunotherapy induced immunodeficiency in COVID-19 patients with
Silvia Ferrari1, Chiara Caprioli1, Alessandra Weber1
1Hematology and Bone Marrow Transplant Unit, ASST Papa Giovanni XXIII, Bergamo, Italy.
Abstract:
During the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) outbreak, patients with defective immunity after chemo-immunotherapy due to hematological disorders showed prolonged symptoms and worse prognosis of coronavirus disease-2019 (COVID-19) pneumonia, probably due to inadequate adaptive immune response and noneffective viral clearance. We describe a single-center series of hematological immunocompromised patients undergoing passive immunization with hyperimmune plasma for persistent COVID-19 symptoms. In all cases, such treatment was well tolerated and contributed to clinical and radiological improvement and recovery; viral clearance was also achieved in a patients' subset. Although requiring further investigation, these results suggest a specific role for hyperimmune plasma administration in hematological patients.
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