CD19-positive lymphocyte count is critical for acquisition of anti-SARS-CoV-2 IgG after vaccination in B-cell lymphoma

Abstract

] However, there is still limited information about the conditions under which such patients may acquire antibodies after vaccination. In this study, we conducted a prospective observation study (registered on the University Hospital Medical Information Network [UMIN] as #000045150) to evaluate antibody titers achieved after SARS-CoV-2 vaccination in patients with hematological diseases, focusing on peripheral blood lymphocyte subsets and g-globulin levels, to evaluate the response and search for markers that predict the response.