NewslettersImmunology of Infectious Disease News Large Clones of Pre-Existing T Cells Drive Early Immunity against SARS-COV-2 and LCMV Infection. By Bob - May 24, 2023 0 Scientists analyzed the clonal basis of the rapid T cell response following SARS-COV-2 infection and applied T cell receptor sequencing to define the trajectories of individual T cell clones immediately. [iScience] AbstractFull ArticleGraphical Abstract