Scientists Uncover Evidence That a Level of Pre-Existing COVID-19 / SARS-CoV-2 Immunity Is Present in the General Population

Scientists Uncover Evidence That a Level of Pre-Existing COVID-19 / SARS-CoV-2 Immunity Is Present in the General Population: Singapore scientists uncover SARS-CoV-2-specific T cell immunity in recovered COVID-19 and SARS patients, and in uninfected individuals. Singapore study shows that SARS-CoV-2-specific T cells are present in all recovered COVID-19 patients. These T cells were also found in all subjects who re