SARS-CoV-2 Immunization Orchestrates the Amplification of IFNγ-Producing T Cell and NK Cell Persistence.

Moreover, we also tested the changes in hematologic parameters during the vaccination, with the idea that a mild trend would be observed “vaccine spike-induced,” as COVID-19 symptomatic patients which present severe leukopenia lymphopenia ( 18 ), and morphologic alteration in peripheral smears (such as the appearance of prominent toxic and apoptotic changes in granulocytes, mono-lobated neutrophils, leukoerythroblastosis, shift to metamyelocyte stage, and rare blasts) ( 19 ).

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