Development of a T Cell-Based Immunodiagnostic System to Effectively Distinguish SARS-CoV-2 Infection and COVID-19 Vaccination Status

Investigators reported the development of two pools of experimentally-defined SARS-CoV-2 T cell epitopes, that in combination with spike, were used to discriminate four groups of subjects with different SARS-CoV-2 infection and COVID-19 vaccine status.