TF and COVID-19: We reanalyze a large-scale COVID-19 single cell transcriptome atlas of PBMC55, in which parts of healthy control from Wuhan, Beijing, Harbin and Suihua cohorts (52,836 cells) are used to train the TF regulon masked TOSICA and the rest of healthy control and COVID-19 positive patients from 10 city cohorts (1,409,866 cells) are used as query dataset (Fig. 5a).